Patents by Inventor Rajendra Mehta
Rajendra Mehta 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: 6686014Abstract: A pattern of coating is applied to a label, such that the coating covers the periphery, including a portion of the top surface of the label, and overlaps onto the liner ply area adjacent to the label. The coating is selected to form a stable and resistant film that spans continuously along the label edge and liner surfaces. The coating reduces adhesive ooze when the label is exposed to elevated ambient temperatures and pressures.Type: GrantFiled: May 2, 2001Date of Patent: February 3, 2004Assignee: The Standard Register CompanyInventors: David E. Washburn, Stephen D. Webendorfer, Rajendra Mehta, David F. Laurash
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Patent number: 6685838Abstract: A method of removing both Sr and Cs from an alkaline solution having a pH between about 9 to 14 includes providing a keratin protein from essentially a fiber portion separated from a quill portion of a poultry feather. A slurry is made of the keratin protein and the alkaline solution and is treated ultrasonically. The Sr and Cs may each be present in the alkaline solution at least at about 5 ppb. The keratin protein is contacted with the Sr and Cs by mechanical agitation at a temperature between about 20 to 90° C. and at a pressure not greater than about 10 psi. A supernatant produced in the step of contacting is then filtered.Type: GrantFiled: June 6, 2001Date of Patent: February 3, 2004Assignee: Maxim LLCInventors: Carlo Licata, Rajendra Mehta, Manoranjan Misra
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Patent number: 6620227Abstract: A UV curable CF ink composition is provided which is formed from a UV curable ink base, an acidic color developer, and a solvent. The UV curable CF ink composition may be applied to a substrate inline on a printing press using conventional letterpress or offset techniques without discoloration or smudging of the ink.Type: GrantFiled: December 11, 2000Date of Patent: September 16, 2003Assignee: The Standard Register CompanyInventors: Gary W. Doll, Rajendra Mehta
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Patent number: 6607813Abstract: A security document is provided comprising a finished cellulosic substrate having at least one transparentized portion formed therein. The transparentized portion comprises a transparentizing composition that is applied so as to define an area of increased transparency in the substrate. The area of increased transparency includes at least one thin line and resembles a simulated security thread. The transparentizing composition can be applied to form thin lines in a variety of configurations on one or both sides of the substrate.Type: GrantFiled: August 23, 2001Date of Patent: August 19, 2003Assignee: The Standard Register CompanyInventors: David E. Washburn, Harry A. Seifert, Watson L. Gullett, Rajendra Mehta
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Publication number: 20030131908Abstract: A method is provided for passivating sulfidic iron-containing rock comprising contacting sulfidic iron-containing rock with one or more members of the group consisting of magnesium oxide, magnesium hydroxide, magnesium chloride, magnesium nitrate and magnesium carbonate, thereby reducing the acid generation potential of rock.Type: ApplicationFiled: July 9, 2002Publication date: July 17, 2003Inventors: Manoranjan Misra, Rajendra Mehta, Songyuan Chen
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Patent number: 6573216Abstract: A single ply carbonless form is provided where a sheet is divided into a first portion and a second portion. A coating of CF is applied to the first portion and a coating of CB is applied to the second portion, both on the same side of the sheet. A quantity of temporary tacking agent is applied to the back face of the sheet such that, upon folding the sheet in a manner where the CF and CB portions are not in contact with each other, the first portion is releasably held against the second portion. The form may then be sheet fed into a printing device, preferably using the folded edge as the leading edge. Subsequent to printing, the form may then be re-folded such that the CF and CB coating suitably line up for receiving impact impressions.Type: GrantFiled: November 30, 2000Date of Patent: June 3, 2003Assignee: The Standard Register CompanyInventors: David E. Washburn, Dale Lakes, Joseph L. Klenke, Rajendra Mehta
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Patent number: 6569280Abstract: A laminated product is provided including a carrier sheet, a polymeric film ply, a polymeric card ply, and a radiation-curable laminating adhesive. The polymeric film ply is secured to the carrier sheet and extends over a cut-out portion formed in the carrier sheet. The polymeric card ply is positioned within the cut-out portion. Either the film ply, the card ply, or both, are transparent to electromagnetic radiation. The radiation-curable laminating adhesive is positioned to secure the polymeric card ply to the exposed ply portion and comprises a bonding agent, a monomer, an oligomer, a tackifier, and a photocatalyst. The bonding agent is present in a quantity sufficient to improve the bonding characteristics of the adhesive composition. The monomer is present in a quantity sufficient to (i) increase the flexibility of the adhesive composition, and (ii) increase the tendency of the adhesive composition to release substantially cleanly from a surface to which it is bonded.Type: GrantFiled: November 6, 1998Date of Patent: May 27, 2003Assignee: The Standard Register CompanyInventors: Rajendra Mehta, Gary Doll, Watson Gullett, A. Dale Lakes
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Patent number: 6541091Abstract: A secure sticker is provided comprising a waterproof base portion including a paper ply, static printed matter, and a resin, wherein the paper ply and the static printed matter are sealed within the resin, and wherein the resin is substantially transparent to light in the visible spectrum. In accordance with one embodiment of the present invention, a secure sticker is provided comprising a substantially waterproof base portion, a liner ply, and an adhesive interface. The substantially waterproof base portion includes a paper ply, static printed matter, and a resin. The paper ply and the static printed matter are sealed within the resin. The resin is substantially transparent to light in the visible spectrum. The liner ply defines a label portion and a removable portion, wherein the label portion includes variable printed matter thereon. The adhesive interface is arranged to adhere the liner ply to the base portion.Type: GrantFiled: July 27, 2001Date of Patent: April 1, 2003Assignee: The Standard Register CompanyInventors: David E. Washburn, Rajendra Mehta, Khristopher J. Fitzgerald
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Patent number: 6497933Abstract: An antistatic composition is provided for use with a label construction which includes an organic cationic polyelectrolyte, a binder, and a surfactant. The composition is preferably used in a label construction comprising a polymer film substrate having a pressure sensitive adhesive on its second surface, a release liner overlying the pressure sensitive adhesive, with the antistatic composition being provided on the second surface of release liner. The antistatic composition reduces the surface resistivity of the second surface of said release liner. The antistatic composition may also be used in combination with a toner adhesion-enhancing coating which is provided on the first surface of the substrate to improve print quality. The labels may be stacked or provided in roll form such that the antistatic composition reduces the coefficient of friction between adjacent labels and prevents the build-up of static charges on the labels.Type: GrantFiled: April 21, 2000Date of Patent: December 24, 2002Assignee: The Standard Register CompanyInventors: Steven L. Yeager, Rajendra Mehta
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Publication number: 20020170461Abstract: A thermochromic ink composition is provided for use on security documents such as checks which provides a reversible color change in response to heat. The ink composition includes a thermochromic aqueous slurry and an ink vehicle comprising either a phenolic modified rosin and a compatible oil, a styrene maleic anhydride resin and a glycol, or an acrylic resin varnish. The ink composition is printed on at least a portion of a substrate using letterpress printing methods and provides enhanced adhesion to toner when applied to areas of a substrate which are subsequently printed with a non-impact printing device such as a laser printer.Type: ApplicationFiled: May 10, 2002Publication date: November 21, 2002Inventors: Rajendra Mehta, Richard L. Shields, Aurelia Gloria W. Kalman
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Publication number: 20020136825Abstract: A heat-transferable security stamp is provided including a carrier sheet, a top coat layer, at least one design layer between the carrier sheet and the top coat layer, a release layer between the carrier sheet and the design layer, and a base coat layer between the release layer and the design layer. The release layer includes a water-borne release component. The base coat layer includes a water-borne base coat component. The design layer includes a water-borne design component. The top coat layer includes a water-borne top coat component. The carrier sheet is resistant to heat above a predetermined heat transfer temperature. The adhesive release component of the release layer is operative to secure the carrier sheet to the base coat layer at temperatures below the heat transfer temperature and to permit release of the carrier sheet from the base coat layer at temperatures above the heat transfer temperature.Type: ApplicationFiled: January 28, 2002Publication date: September 26, 2002Inventors: William F. Pinell, Rajendra Mehta, Harry A. Seifert, John M. Harden
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Publication number: 20020108903Abstract: A method of removing both Sr and Cs from an alkaline solution having a pH between about 9 to 14 includes providing a keratin protein from essentially a fiber portion separated from a quill portion of a poultry feather. A slurry is made of the keratin protein and the alkaline solution and is treated ultrasonically. The Sr and Cs may each be present in the alkaline solution at least at about 5 ppb. The keratin protein is contacted with the Sr and Cs by mechanical agitation at a temperature between about 20 to 90° C. and at a pressure not greater than about 10 psi. A supernatant produced in the step of contacting is then filtered.Type: ApplicationFiled: June 6, 2001Publication date: August 15, 2002Applicant: Maxim LLCInventors: Edward C. Homonoff, Rajendra Mehta, Manoranjan Misra
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Patent number: 6416911Abstract: A coating for a retroreflective document is provided which renders the surface of the document receptive to toners and inks printed thereon while not substantially interfering with the retroreflective properties of the underlying substrate. Methods for fabricating the document are also provided.Type: GrantFiled: November 13, 2001Date of Patent: July 9, 2002Assignee: The Standard Register CompanyInventors: Rajendra Mehta, A. Dale Lakes, Richard Lynn Shields
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Patent number: 6413305Abstract: A thermochromic ink composition is provided for use on security documents such as checks which provides a reversible color change in response to heat. The ink composition includes a thermochromic aqueous slurry and an ink vehicle comprising either a phenolic modified rosin and a compatible oil, a styrene maleic anhydride resin and a glycol, or an acrylic resin varnish. The ink composition is printed on at least a portion of a substrate using letterpress printing methods and provides enhanced adhesion to toner when applied to areas of a substrate which are subsequently printed with a non-impact printing device such as a laser printer.Type: GrantFiled: February 7, 2000Date of Patent: July 2, 2002Assignee: The Standard Register CompanyInventors: Rajendra Mehta, Richard L. Shields, Aurelia Gloria W. Kalman
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Patent number: 6410082Abstract: A heat-transferable security stamp is provided including a carrier sheet, a top coat layer, at least one design layer between the carrier sheet and the top coat layer, a release layer between the carrier sheet and the design layer, and a base coat layer between the release layer and the design layer. The release layer includes a water-borne release component. The base coat layer includes a water-borne base coat component. The design layer includes a water-borne design component. The top coat layer includes a water-borne top coat component. The carrier sheet is resistant to heat above a predetermined heat transfer temperature. The adhesive release component of the release layer is operative to secure the carrier sheet to the base coat layer at temperatures below the heat transfer temperature and to permit release of the carrier sheet from the base coat layer at temperatures above the heat transfer temperature.Type: GrantFiled: January 13, 2000Date of Patent: June 25, 2002Assignee: The Standard Register CompanyInventors: William F. Pinell, Rajendra Mehta, Harry A. Seifert, John M. Harden
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Patent number: 6409075Abstract: A mailer intermediate is formed from a sheet having at least one transverse fold line dividing the sheet into a first panel and a second panel such that the first panel longitudinal dimensions are equal to, or exceed the second panel longitudinal dimensions. The second panel is folded over onto the first panel. A temporary tacking agent is applied to the face of the sheet to temporarily tack down the folded over, transverse edge of the lower panel. The mailer intermediate may be processed in this pre-folded condition according to the user's variable imaging needs because there are no loose edges to catch in printer output stacking trays, or jam in internal components of printers. The longitudinal edges of the return envelope panel may be permanently sealed prior to printing, or may be sealed later during processing through folder/sealer equipment.Type: GrantFiled: October 4, 2000Date of Patent: June 25, 2002Assignee: The Standard Register CompanyInventors: Rajendra Mehta, Todd M. Pegler, Stephen W. Henson, David E. Washburn
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Publication number: 20020076532Abstract: A coating for a retroreflective document is provided which renders the surface of the document receptive to toners and inks printed thereon while not substantially interfering with the retroreflective properties of the underlying substrate. Methods for fabricating the document are also provided.Type: ApplicationFiled: November 13, 2001Publication date: June 20, 2002Inventors: Rajendra Mehta, A. Dale Lakes, Richard Lynn Shields
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Patent number: 6386442Abstract: A business form or mailer intermediate providing fold-over carbonless imaging is provided. The form or mailer includes separate CB and CF coating portions on a single sheet. When the form or mailer is folded about a fold line, the CB portion comes in contact with the CF portion. An image is created when the fold-over carbonless area is subjected to an imaging force.Type: GrantFiled: September 28, 2001Date of Patent: May 14, 2002Assignee: The Standard Register CompanyInventors: Rajendra Mehta, A. Dale Lakes, Hugh B. Skees
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Patent number: 6383631Abstract: A combination release coating and barrier coating for use on linerless thermal labels is provided in which the release coating includes an epoxy-silicone copolymer, a release modifier, and a cationic photoinitiator. The release coating provides an improved surface for direct thermal printing and good release properties from pressure sensitive adhesives. The barrier coating is preferably provided on the first and second surfaces of the label substrate to provide moisture and abrasion resistance to the substrate and to prevent adhesive failure.Type: GrantFiled: April 17, 2000Date of Patent: May 7, 2002Assignee: The Standard Register CompanyInventor: Rajendra Mehta
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Patent number: 6376135Abstract: A coating for a retroreflective document is provided which renders the surface of the document receptive to toners and inks printed thereon while not substantially interfering with the retroreflective properties of the underlying substrate. Methods for fabricating the document are also provided.Type: GrantFiled: May 11, 1999Date of Patent: April 23, 2002Assignee: The Standard Register CompanyInventors: Rajendra Mehta, A. Dale Lakes, Richard Lynn Shields