Patents by Inventor Chandan Kumar Saha
Chandan Kumar Saha 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: 9744099Abstract: A coated glass pharmaceutical package may include a body formed from borosilicate glass that meets the Type 1 criteria according to USP <660>. The body may have an interior surface and an exterior surface. A low-friction coating having a thickness of less than 100 microns may be positioned on at least a portion of the exterior surface. The portion of the exterior surface with the low-friction coating may have a coefficient of friction that is at least 20% less than an uncoated glass pharmaceutical package formed from the same glass composition and the coefficient of friction may not increase by more than 30% after undergoing a depyrogenation cycle at a temperature of from 250° C. to 400° C. for a time period of from 30 seconds to 72 hours.Type: GrantFiled: October 21, 2016Date of Patent: August 29, 2017Assignee: CORNING INCORPORATEDInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Patent number: 9725357Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, the interface exhibits an effective adhesion energy of about less than about 4 J/m2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer containing an inorganic material between the glass substrate and the film.Type: GrantFiled: April 9, 2014Date of Patent: August 8, 2017Assignee: Corning IncorporatedInventors: Kaveh Adib, Robert Alan Bellman, Shandon Dee Hart, Guangli Hu, Robert George Manley, Prantik Mazumder, Chandan Kumar Saha
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Patent number: 9668936Abstract: Coated pharmaceutical packages are disclosed. In embodiments, a coated pharmaceutical package may include a glass body comprising a first surface. A low-friction coating may be positioned on at least a portion of the first surface of the glass body. The low-friction coating may include a polymer chemical composition. The coated pharmaceutical package may be thermally stable at a temperature of at least about 260° C. for 30 minutes. The low-friction coating may have a mass loss of less than about 5% of its mass when heated from a temperature of 150° C. to 350° C. at a ramp rate of about 10° C./minute.Type: GrantFiled: July 29, 2015Date of Patent: June 6, 2017Assignee: CORNING INCORPORATEDInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Publication number: 20170087058Abstract: Glass pharmaceutical packages with coatings are disclosed herein. According to one embodiment, the glass pharmaceutical package includes a glass body enclosing an inner volume and having an exterior surface. A coating may be positioned on at least a portion of the exterior surface of the glass body. The coating may include a coupling agent layer having a first thickness of greater than or equal to 25 nm and less than or equal to 100 nm. A polymer layer having a second thickness of less than 50 nm may be positioned over the coupling agent layer.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Applicant: Corning IncorporatedInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Patent number: 9586858Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, interface exhibits the effective adhesion energy is about less than about 4 J/m2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer between the glass substrate and the film.Type: GrantFiled: October 14, 2013Date of Patent: March 7, 2017Assignee: Corning IncorporatedInventors: Robert Alan Bellman, Shandon Dee Hart, Robert George Manley, Prantik Mazumder, Charles Andrew Paulson, Chandan Kumar Saha
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Publication number: 20170036950Abstract: A coated glass pharmaceutical package may include a body formed from a Type 1 Class glass according to ASTM Standard E438-92. The body may have an interior surface and an exterior surface. The body may also have at least a class A2 base resistance or better according to ISO 695, at least a type HGB2 hydrolytic resistance or better according to ISO 719 and a Type 1 chemical durability according to USP <660>. A coating having a thickness of ?100 microns may be positioned on at least a portion of the exterior surface. The portion of the exterior surface with the coating may have a coefficient of friction that is at least 20% less than an uncoated glass pharmaceutical package and the coefficient of friction does not increase by more than 30% after undergoing a depyrogenation.Type: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Applicant: Corning IncorporatedInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Publication number: 20160324016Abstract: One or more aspects relate to an article that includes a glass substrate having a first average strain-to-failure; and a crack mitigating layer disposed on a first major surface of the substrate forming a first interface. The article also includes a film disposed on the crack mitigating layer forming a second interface and having a second average strain-to-failure that is less than the first average strain-to-failure. Further, at least one of the first and second interfaces exhibits a moderate adhesion such that at least a portion of the crack mitigating layer experiences one or more of a cohesive failure and an adhesive failure at the interfaces when the article is strained to a strain level between the first average strain-to-failure and the second average strain-to-failure. In addition, the refractive index of the crack mitigating layer is between or the same as the refractive indices of the substrate and the film.Type: ApplicationFiled: April 28, 2016Publication date: November 3, 2016Inventors: Robert Alan Bellman, Jiangwei Feng, Shandon Dee Hart, Jen-Chieh Lin, Prantik Mazumder, Chandan Kumar Saha
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Patent number: 9428302Abstract: Delamination resistant glass containers with heat-tolerant coatings are disclosed. In one embodiment, a glass container may include a glass body having an interior surface, an exterior surface and a wall thickness extending from the exterior surface to the interior surface. At least the interior surface of the glass body is delamination resistant. The glass container may further include a heat-tolerant coating positioned on at least a portion of the exterior surface of the glass body. The heat-tolerant coating may be thermally stable at temperatures greater than or equal to 260° C. for 30 minutes.Type: GrantFiled: October 18, 2013Date of Patent: August 30, 2016Assignee: CORNING INCORPORATEDInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky, Robert Anthony Schaut, Paul Stephen Danielson, Melinda Ann Drake, Robert Michael Morena, Kaveh Adib, James Patrick Hamilton, Susan Lee Schiefelbein
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Publication number: 20160207825Abstract: One or more aspects of the disclosure pertain to a laminates including a substrate, such as a glass substrate, which may be strengthened, or a sapphire substrate, and a polymeric scratch resistant layer disposed on the substrate. In one or more embodiments, where a glass substrate is utilized, the average flexural strength of the glass substrate is maintained when combined with the polymeric scratch resistant layer. The polymeric scratch resistant layer may include a polymeric diamond-like carbon. In one or more embodiments, the polymeric scratch resistant layer forms a shearable interface with the glass substrate or comprises a plurality of sub-layers and a plurality of shearable interfaces between such plurality of sub-layers. Methods for forming such laminates are also disclosed.Type: ApplicationFiled: August 27, 2014Publication date: July 21, 2016Inventors: Matthew Lee Black, Charles Andrew Paulson, Chandan Kumar Saha
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Patent number: 9327871Abstract: Delamination resistant glass containers with heat-tolerant coatings are disclosed. In one embodiment, a glass container may include a glass body having an interior surface, an exterior surface and a wall thickness extending from the exterior surface to the interior surface. At least the interior surface of the glass body is delamination resistant. The glass container may further include a heat-tolerant coating positioned on at least a portion of the exterior surface of the glass body. The heat-tolerant coating may be thermally stable at temperatures greater than or equal to 260° C. for 30 minutes.Type: GrantFiled: October 18, 2013Date of Patent: May 3, 2016Assignee: Corning IncorporatedInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky, Robert Anthony Schaut, Paul Stephen Danielson, Melinda Ann Drake, Robert Michael Morena, Kaveh Adib, James Patrick Hamilton, Susan Lee Schiefelbein
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Publication number: 20150360999Abstract: Coated pharmaceutical packages are disclosed. In embodiments, a coated pharmaceutical package may include a glass body comprising a first surface. A low-friction coating may be positioned on at least a portion of the first surface of the glass body. The low-friction coating may include a polymer chemical composition. The coated pharmaceutical package may be thermally stable at a temperature of at least about 260° C. for 30 minutes. The low-friction coating may have a mass loss of less than about 5% of its mass when heated from a temperature of 150° C. to 350° C. at a ramp rate of about 10° C./minute.Type: ApplicationFiled: July 29, 2015Publication date: December 17, 2015Applicant: Corning IncorporatedInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Publication number: 20150329416Abstract: Coated pharmaceutical packages are disclosed. In embodiments, a coated pharmaceutical package includes a glass body comprising a first surface. A low-friction coating may be positioned on at least a portion of the first surface of the glass body. The low-friction coating may include a polymer chemical composition. A light transmission through the coated pharmaceutical package may be greater than or equal to about 55% of a light transmission through an uncoated pharmaceutical package for wavelengths from about 400 nm to about 700 nm. The low-friction coating may have a mass loss of less than about 5% of its mass when heated from a temperature of 150° C. to 350° C. at a ramp rate of about 10° C./minute.Type: ApplicationFiled: July 29, 2015Publication date: November 19, 2015Applicant: CORNING INCORPORATEDInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky
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Publication number: 20150074974Abstract: Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer.Type: ApplicationFiled: November 19, 2014Publication date: March 19, 2015Inventors: Jonathan David Pesansky, Chandan Kumar Saha, Trevor E. Wilantewicz
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Publication number: 20140220327Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, the interface exhibits an effective adhesion energy of about less than about 4 J/m2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer containing an inorganic material between the glass substrate and the film.Type: ApplicationFiled: April 9, 2014Publication date: August 7, 2014Applicant: CORNING INCORPORATEDInventors: Kaveh Adib, Robert Alan Bellman, Shandon Dee Hart, Guangli Hu, Robert George Manley, Prantik Mazumder, Chandan Kumar Saha
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Publication number: 20140106146Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article retains its average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be prevented by inserting a crack mitigating layer between the glass substrate and the film.Type: ApplicationFiled: October 11, 2013Publication date: April 17, 2014Applicant: CORNING INCORPORATEDInventors: Heather Bossard Decker, Shandon Dee Hart, Guangli Hu, Fei Li, James Joseph Price, Chandan Kumar Saha
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Publication number: 20140106141Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, interface exhibits the effective adhesion energy is about less than about 4 J/m2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer between the glass substrate and the film.Type: ApplicationFiled: October 14, 2013Publication date: April 17, 2014Applicant: CORNING INCORPORATEDInventors: Robert Alan Bellman, Shandon Dee Hart, Robert George Manley, Prantik Mazumder, Charles Andrew Paulson, Chandan Kumar Saha
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Publication number: 20140069886Abstract: Delamination resistant glass containers with heat-tolerant coatings are disclosed. In one embodiment, a glass container may include a glass body having an interior surface, an exterior surface and a wall thickness extending from the exterior surface to the interior surface. At least the interior surface of the glass body is delamination resistant. The glass container may further include a heat-tolerant coating positioned on at least a portion of the exterior surface of the glass body. The heat-tolerant coating may be thermally stable at temperatures greater than or equal to 260° C. for 30 minutes.Type: ApplicationFiled: October 18, 2013Publication date: March 13, 2014Applicant: Corning IncorporatedInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky, Robert Anthony Schaut, Paul Stephen Danielson, Melinda Ann Drake, Robert Michael Morena, Kaveh Adib, James Patrick Hamilton, Susan Lee Schiefelbein
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Publication number: 20140001076Abstract: Delamination resistant glass containers with heat-tolerant coatings are disclosed. In one embodiment, a glass container may include a glass body having an interior surface, an exterior surface and a wall thickness extending from the exterior surface to the interior surface. At least the interior surface of the glass body is delamination resistant. The glass container may further include a heat-tolerant coating positioned on at least a portion of the exterior surface of the glass body. The heat-tolerant coating may be thermally stable at temperatures greater than or equal to 260° C. for 30 minutes.Type: ApplicationFiled: March 14, 2013Publication date: January 2, 2014Applicant: CORNING INCORPORATEDInventors: Andrei Gennadyevich Fadeev, Theresa Chang, Dana Craig Bookbinder, Santona Pal, Chandan Kumar Saha, Steven Edward DeMartino, Christopher Lee Timmons, John Stephen Peanasky, Robert Anthony Schaut, Paul Steven Danielson, Melinda Ann Drake, Robert Michael Morena, Kaveh Adib
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Patent number: 6210749Abstract: This invention pertains to a method for producing thermally stable multi-layer coatings and the coatings produced therefrom. The multi-layer coating is comprised of a first coating produced from hydrogen silsesquioxane having a thickness of 1.25 to 2.25 &mgr;m and a second coating comprising silicon dioxide having a thickness of at least 100 nm. The method for producing the first coating comprises applying a fillerless hydrogen silsesquioxane resin composition onto a substrate and thereafter heating the hydrogen silsesquioxane resin at a temperature of 150° C. to 500° C. for a sufficient period of time to produce a crack-free coating having a thickness of 1.25 &mgr;m to 2.25 &mgr;m. The second coating is produced by depositing, preferably by PECVD, silicon dioxide over the first coating at a thickness of at least 100 nm.Type: GrantFiled: March 1, 2000Date of Patent: April 3, 2001Assignee: Dow Corning, CorporationInventors: Jeffrey Nicholas Bremmer, Kyuha Chung, Chandan Kumar Saha, Michael John Spaulding
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Patent number: 6022625Abstract: This invention pertains to a method for producing crack-free, insoluble, greater than 1.25 .mu.m thick coatings from hydrogen silsesquioxane resin compositions. The method for producing the coating comprises applying a fillerless hydrogen silsesquioxane resin composition onto a substrate and thereafter heating the hydrogen silsesquioxane resin at a temperature of less than 500.degree. C. for a controlled period of time to produce the crack-free coating having a thickness of greater than 1.25 .mu.m. The resins may be cured in an inert or oxygen containing environment.Type: GrantFiled: August 3, 1998Date of Patent: February 8, 2000Assignee: Dow Corning CorporationInventors: Jeffrey Nicholas Bremmer, Kyuha Chung, Chandan Kumar Saha, Michael John Spaulding