Patents by Inventor Philip Bruce Henderson
Philip Bruce Henderson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9302214Abstract: A pressure-swing adsorption process for producing a purified nitrogen trifluoride (NF3) product gas from a feed gas contaminated with carbon tetrafluoride (CF4) using a column packed with an adsorbent that exhibits selectivity for NF3 over CF4. The process separates the feed gas into a first product gas having a greater concentration of CF4 than the feed gas and a second product gas having a lesser concentration of CF4 without the use of an inert carrier gas while recovering essentially all of the NF3. The process includes filling the column with the feed gas until the column reaches a first pressure, removing the first product gas, and then removing the second product gas, where after the second product gas is removed the column is at a second pressure. A rinse gas of NF3 and CF4 may be used to remove the first product gas or the second product gas.Type: GrantFiled: August 22, 2014Date of Patent: April 5, 2016Assignee: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Philip Bruce Henderson, Richard Paul Underwood
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Publication number: 20160051923Abstract: A pressure-swing adsorption process for producing a purified nitrogen trifluoride (NF3) product gas from a feed gas contaminated with carbon tetrafluoride (CF4) using a column packed with an adsorbent that exhibits selectivity for NF3 over CF4. The process separates the feed gas into a first product gas having a greater concentration of CF4 than the feed gas and a second product gas having a lesser concentration of CF4 without the use of an inert carrier gas while recovering essentially all of the NF3. The process includes filling the column with the feed gas until the column reaches a first pressure, removing the first product gas, and then removing the second product gas, where after the second product gas is removed the column is at a second pressure. A rinse gas of NF3 and CF4 may be used to remove the first product gas or the second product gas.Type: ApplicationFiled: August 22, 2014Publication date: February 25, 2016Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Philip Bruce Henderson, Richard Paul Underwood
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Patent number: 8404024Abstract: During the conventional temperature swing adsorption (TSA) process, NF3 co-adsorbed with the impurities is vented during regeneration. This invention is a novel TSA cycle in which the co-adsorbed NF3 is recovered. In this novel TSA cycle, a control scheme is used to stop the adsorption prior to the saturation of the adsorber with impurities and use a recovery purge gas (either co-current or counter-current) to release the co-adsorbed NF3 off the saturated adsorber. The effluent of the inert purge gas can be combined with the effluent of the on-stream vessel or can be recycled to the feed of the on-stream vessel. 10%-100% of the co-adsorbed NF3 is recovered and made available as product in this novel TSA cycle. Thus the overall process yield of NF3 is increased. The removing of the co-adsorbed NF3 from the adsorber also prevents adsorber degradation thus prolonging the useful life of the adsorber.Type: GrantFiled: April 15, 2010Date of Patent: March 26, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Philip Bruce Henderson, Patrick Michael Colleran, Forrest Eli Hulbert
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Patent number: 8202446Abstract: A mixture and method for the storage and delivery of a gas are disclosed herein. In one aspect, there is provided a mixture comprising: an ionic liquid comprising an anion and a cation, at least a portion of the gas that is disposed within and reversibly chemically reacted with the ionic liquid, and optionally an unreacted gas. In another aspect, there is provided a method for delivering a gas from a mixture comprising an ionic liquid and one or more gases comprising: reacting at least a portion of the gas with the ionic liquid to provide the mixture comprising a chemically reacted gas and an ionic liquid and separating the chemically reacted gas from the mixture wherein the chemically reacted gas after the separating step has substantially the same chemical identity as the chemically reacted gas prior to the reacting step.Type: GrantFiled: June 29, 2009Date of Patent: June 19, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski, Ronald Martin Pearlstein, Diwakar Garg
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Patent number: 8197914Abstract: The present invention discloses plasma enhanced chemical vapor deposition (PECVD) process for depositing n-type and p-type zinc oxide-based transparent conducting oxides (TCOs) at low temperatures with excellent optical and electrical properties on glass and temperature sensitive materials such as plastics and polymers. Specifically, it discloses PECVD process for depositing n-type ZnO by doping it with B or F and p-type ZnO by doping it with nitrogen excellent optical and electrical properties on glass and temperature sensitive materials such as plastics and polymers for TCO application. The process utilizes a mixture of volatile zinc compound, argon and/or helium as a diluent gas, carbon dioxide as an oxidant, and a dopant or reactant to deposit the desired ZnO-based TCOs.Type: GrantFiled: November 21, 2005Date of Patent: June 12, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Philip Bruce Henderson, Daniel Joseph Tempel, Thomas N. Jackson, Jie Sun
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Publication number: 20110100209Abstract: During the conventional temperature swing adsorption (TSA) process, NF3 co-adsorbed with the impurities is vented during regeneration. This invention is a novel TSA cycle in which the co-adsorbed NF3 is recovered. In this novel TSA cycle, a control scheme is used to stop the adsorption prior to the saturation of the adsorber with impurities and use a recovery purge gas (either co-current or counter-current) to release the co-adsorbed NF3 off the saturated adsorber. The effluent of the inert purge gas can be combined with the effluent of the on-stream vessel or can be recycled to the feed of the on-stream vessel. 10%-100% of the co-adsorbed NF3 is recovered and made available as product in this novel TSA cycle. Thus the overall process yield of NF3 is increased. The removing of the co-adsorbed NF3 from the adsorber also prevents adsorber degradation thus prolonging the useful life of the adsorber.Type: ApplicationFiled: April 15, 2010Publication date: May 5, 2011Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Philip Bruce Henderson, Patrick Michael Colleran, Forrest Eli Hulbert
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Patent number: 7736420Abstract: The invention relates to an improvement in apparatus and process for the formation of a complex of Lewis acidic or Lewis basic gases in a reactive liquid of opposite character and for the breaking (fragmentation) of said complex associated with the recovery of the Lewis gas therefrom. The improvement resides in forming finely divided droplets of reactive liquid and controlling the temperature, pressure and concentration of said Lewis gas of opposite character to provide for (a) the formation of said complex between said gas and reactive liquid or (b) the breaking of said complex and the recovery of the atomized droplets of reactive liquid.Type: GrantFiled: May 19, 2006Date of Patent: June 15, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Wayne Thomas McDermott, Philip Bruce Henderson, Daniel Joseph Tempel, Ronald Martin Pearlstein, James Joseph Hart, Rosaleen Patricia Morris-Oskanian, Diwakar Garg
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Patent number: 7648682Abstract: The invention relates to an improvement in apparatus and process for effecting storage and delivery of a gas. The storage and delivery apparatus is comprised of a storage and dispensing vessel containing a medium capable of storing a gas and permitting delivery of the gas stored in the medium from the vessel, the improvement comprising: (a) a reactive liquid having Lewis acidity or basicity; (b) a gas liquid complex in a reversible reacted state formed under conditions of pressure and temperature by contacting the gas having Lewis acidity with the reactive liquid having Lewis basicity or the gas having Lewis basicity with the reactive liquid having Lewis acidity; (c) a non-reactive wick medium holding and dispersing the reactive liquid and the gas liquid complex therein.Type: GrantFiled: May 3, 2007Date of Patent: January 19, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Wayne Thomas McDermott, Daniel Joseph Tempel, Philip Bruce Henderson, Ronald Martin Pearlstein
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Publication number: 20090272938Abstract: A mixture and method for the storage and delivery of a gas are disclosed herein. In one aspect, there is provided a mixture comprising: an ionic liquid comprising an anion and a cation, at least a portion of the gas that is disposed within and reversibly chemically reacted with the ionic liquid, and optionally an unreacted gas. In another aspect, there is provided a method for delivering a gas from a mixture comprising an ionic liquid and one or more gases comprising: reacting at least a portion of the gas with the ionic liquid to provide the mixture comprising a chemically reacted gas and an ionic liquid and separating the chemically reacted gas from the mixture wherein the chemically reacted gas after the separating step has substantially the same chemical identity as the chemically reacted gas prior to the reacting step.Type: ApplicationFiled: June 29, 2009Publication date: November 5, 2009Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski, Ronald Martin Pearlstein, Diwakar Garg
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Patent number: 7563308Abstract: A mixture and method for the storage and delivery of a gas are disclosed herein. In one aspect, there is provided a mixture comprising: an ionic liquid comprising an anion and a cation, at least a portion of the gas that is disposed within and reversibly chemically reacted with the ionic liquid, and optionally an unreacted gas. In another aspect, there is provided a method for delivering a gas from a mixture comprising an ionic liquid and one or more gases comprising: reacting at least a portion of the gas with the ionic liquid to provide the mixture comprising a chemically reacted gas and an ionic liquid and separating the chemically reacted gas from the mixture wherein the chemically reacted gas after the separating step has substantially the same chemical identity as the chemically reacted gas prior to the reacting step.Type: GrantFiled: August 23, 2005Date of Patent: July 21, 2009Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski, Ronald Martin Pearlstein, Diwakar Garg
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Patent number: 7404845Abstract: A mixture and method for the storage and delivery of at least one gas are disclosed herein. In one aspect, there is provided a mixture for the storage and delivery of at least one gas comprising: an ionic liquid comprising an anion and a cation; and at least one gas that is disposed within and is reversibly chemically reacted with the ionic liquid. In another aspect, there is provided a method for delivering at least one gas from a mixture comprising an ionic liquid and at least one gas comprising: reacting the at least one gas and the ionic liquid to provide the mixture and separating the at least one gas from the mixture wherein the at least one gas after the separating step is substantially the same as the at least one gas prior to the reacting step.Type: GrantFiled: September 23, 2004Date of Patent: July 29, 2008Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski
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Patent number: 7396381Abstract: The present invention is directed to improvements in storage and delivery systems that allow for rapid fill and delivery of gases reversibly stored in a nonvolatile liquid medium, improvements in delivery and purity of the delivered gas. The low pressure storage and delivery system for gas which comprises: a container having an interior portion containing a reactive Lewis basic or Lewis acidic reactive liquid medium that is reversibly reacted with a gas having opposing Lewis acidity or basicity; a system for transferring energy into or out of the reactive liquid medium; or, a product gas purifier (e.g. a gas/liquid separator); or both.Type: GrantFiled: July 8, 2004Date of Patent: July 8, 2008Assignee: Air Products and Chemicals, Inc.Inventors: David Ross Graham, Daniel Joseph Tempel, Bernard Allen Toseland, Philip Bruce Henderson, James Joseph Hart, John Bruce Appleby, Jeffrey Richard Brzozowski, Pushpinder Singh Puri
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Publication number: 20070287812Abstract: The invention relates to an improvement in apparatus and process for the formation of a complex of Lewis acidic or Lewis basic gases in a reactive liquid of opposite character and for the breaking (fragmentation) of said complex associated with the recovery of the Lewis gas therefrom. The improvement resides in forming finely divided droplets of reactive liquid and controlling the temperature, pressure and concentration of said Lewis gas of opposite character to provide for (a) the formation of said complex between said gas and reactive liquid or (b) the breaking of said complex and the recovery of the atomized droplets of reactive liquid.Type: ApplicationFiled: May 19, 2006Publication date: December 13, 2007Inventors: Wayne Thomas McDermott, Philip Bruce Henderson, Daniel Joseph Tempel, Ronald Martin Pearlstein, James Joseph Hart, Rosaleen Patricia Morris-Oskanian, Diwakar Garg
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Patent number: 7307772Abstract: A method of producing an electrochromic device, includes the steps of: providing a first electron conducting layer on a substrate, providing a working electrode in communication with the first electron conducting layer, providing an ion conducting layer in communication with the working electrode, providing an ion storage electrode in communication with the ion conducting layer, and providing a second electron conducting layer in communication with the ion storage electrode, wherein at least one and less than all of the providing steps include(s) plasma chemical vapor deposition. An electrochromic device produced by the method of the invention is disclosed, as is an apparatus adapted to perform the method of the invention, including plasma CVD devices and vacuum sputtering devices.Type: GrantFiled: September 11, 2006Date of Patent: December 11, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Philip Bruce Henderson
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Patent number: 7303607Abstract: This invention relates to an improvement in a low-pressure storage and delivery system for gases having Lewis basicity, particularly hazardous specialty gases such as phosphine and arsine, which are utilized in the electronics industry. The improvement resides in storing the gases in a liquid incorporating a reactive compound having Lewis acidity capable of effecting a reversible reaction between a gas having Lewis basicity. The reactive compound comprises a reactive species that is dissolved, suspended, dispersed, or otherwise mixed with a nonvolatile liquid.Type: GrantFiled: June 14, 2004Date of Patent: December 4, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski, Ronald Martin Pearlstein, Thomas Richard Gaffney
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Patent number: 7282084Abstract: This invention relates to an improvement in a low-pressure storage and delivery system for gases having Lewis acidity, particularly hazardous specialty gases such as BF3 and diborane, which are utilized in the electronics industry. The improvement resides in storing the gases in a liquid incorporating a reactive compound having Lewis basicity capable of effecting a reversible reaction between a gas having Lewis acidity. The reactive compound comprises a reactive species that is dissolved, suspended, dispersed, or otherwise mixed with a nonvolatile liquid.Type: GrantFiled: October 15, 2004Date of Patent: October 16, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski, Ronald Martin Pearlstein
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Patent number: 7267842Abstract: A process for the selective removal of a TiO2-containing substance from an article for cleaning applications is disclosed herein. In one embodiment, there is provided a process for removing a TiO2-containing substance from an article comprising: providing the article having the TiO2-containing substance deposited thereupon; reacting the substance with a reactive gas comprising at least one selected from a fluorine-containing cleaning agent, a chlorine-containing cleaning agent and mixtures thereof to form a volatile product; and removing the volatile product from the article to thereby remove the substance from the article.Type: GrantFiled: March 15, 2004Date of Patent: September 11, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Dingjun Wu, Bing Ji, Philip Bruce Henderson, Eugene Joseph Karwacki, Jr.
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Patent number: 7172646Abstract: This invention relates generally to an improvement in low pressure storage and dispensing systems for the selective storing of gases having Lewis acidity or basicity, and the subsequent dispensing of said gases at pressures, e.g., generally below 5 psig and typically below atmospheric pressure, by modest heating, pressure reduction or both. The improvement resides in storing the gases in a reversibly reacted state within a reactive liquid having opposing Lewis basicity or acidity.Type: GrantFiled: April 15, 2003Date of Patent: February 6, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Daniel Joseph Tempel, Philip Bruce Henderson, Jeffrey Richard Brzozowski
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Patent number: 7106488Abstract: A method of producing an electrochromic device, includes the steps of: providing a first electron conducting layer on a substrate, providing a working electrode in communication with the first electron conducting layer, providing an ion conducting layer in communication with the working electrode, providing an ion storage electrode in communication with the ion conducting layer, and providing a second electron conducting layer in communication with the ion storage electrode, wherein at least one and less than all of the providing steps include(s) plasma chemical vapor deposition. An electrochromic device produced by the method of the invention is disclosed, as is an apparatus adapted to perform the method of the invention, including plasma CVD devices and vacuum sputtering devices.Type: GrantFiled: March 23, 2004Date of Patent: September 12, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Philip Bruce Henderson
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Patent number: 7087102Abstract: A process and system for the synthesis and/or purification of crude germane to provide a purified germane product are disclosed herein. In one aspect of the present invention, there is provided a process for making a purified germane product containing less than 1 volume percent of one or more germanium-containing impurities comprising: providing a crude germane fluid; passing at least a portion of the crude germane fluid through a first adsorbent which selectively adsorbs water and carbon dioxide contained therein and withdrawing therefrom a partially purified germane fluid; passing at least a portion of the partially purified germane fluid through a second adsorbent which selectively adsorbs the one or more germanium-containing impurities contained therein and withdrawing therefrom a hydrogen-enriched purified germane fluid; and separating the purified germane product hydrogen from the hydrogen-enriched purified germane fluid.Type: GrantFiled: February 26, 2004Date of Patent: August 8, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Howard Paul Withers, Jr., Philip Bruce Henderson