Patents by Inventor Ronald R. Valente
Ronald R. Valente 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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Publication number: 20170349616Abstract: The present invention provides novel metal complexes, methods of making, and methods of using the same.Type: ApplicationFiled: August 22, 2017Publication date: December 7, 2017Inventors: Gabriel E. Job, Scott D. Allen, Christopher Simoneau, Ronald R. Valente, Jay J. Farmer
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Patent number: 9493391Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: GrantFiled: September 17, 2015Date of Patent: November 15, 2016Assignee: NOVOMER, INC.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20160102040Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: ApplicationFiled: September 17, 2015Publication date: April 14, 2016Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Patent number: 9206144Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: GrantFiled: May 12, 2014Date of Patent: December 8, 2015Assignee: Novomer, Inc.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20140275575Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: ApplicationFiled: May 12, 2014Publication date: September 18, 2014Applicant: Novomer, Inc.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Patent number: 8796475Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: GrantFiled: April 10, 2013Date of Patent: August 5, 2014Assignee: Novomer, Inc.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20130281715Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: ApplicationFiled: April 10, 2013Publication date: October 24, 2013Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Patent number: 8445703Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: GrantFiled: April 7, 2010Date of Patent: May 21, 2013Assignee: Novomer, Inc.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20120123137Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: ApplicationFiled: April 7, 2010Publication date: May 17, 2012Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Patent number: 6008369Abstract: Photographic pyrazolotriazole dye forming coupler compounds of coupler intermediate compounds can be readily prepared in a single reaction medium by reacting certain pyrazolotriazole compounds with nitro-substituted aromatic compounds in the presence of a formate salt and a transition metal catalyst. This salt hydrogenates the nitro group and the carbonate by-product induces reaction of the resulting amine with the pyrazolotriazole compound. Yields and purity are high, and reaction time is reduced with the specific set of conditions and reactants, and environmental impact from waste is reduced. In addition, isolation of aromatic amine intermediates is avoided. The resulting pyrazolotriazole compounds can be used themselves as photographic dye forming couplers or further reacted to prepare useful coupler compounds for photographic use.Type: GrantFiled: May 17, 1999Date of Patent: December 28, 1999Assignee: Eastman Kodak CompanyInventors: Ronald R. Valente, Judith A. Bose
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Patent number: 5998629Abstract: Photographic pyrazolotriazole dye forming coupler compound or coupler intermediate compounds can be readily prepared by inducing an elimination-addition reaction between certain pyrazolotriazole compounds and aromatic amines in the presence of an inorganic base or formate. Yields and purity are high, and reaction time is reduced with the specific set of conditions and reactants, and environmental impact from waste is reduced. The resulting compounds can be used themselves as photographic dye forming couplers or further reacted to prepare useful coupler compounds for photographic use.Type: GrantFiled: December 2, 1998Date of Patent: December 7, 1999Assignee: Eastman Kodak CompanyInventors: Judith A. Bose, Ronald R. Valente, Dino Aimino, Deborah D. DeMejo
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Patent number: 5985532Abstract: The invention provides a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a dye-forming coupler having formula I: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, and heterocyclic groups;R.sub.2 is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic groups;W is C(O) or S(O).sub.2 ;R.sub.3 is selected from the group consisting of alkyl, alkoxy, aryl, aryloxy, and amino groups;each R.sub.4 is independently selected from the group consisting of alkyl, alkoxy, aryl, aryloxy, and alkylamino groups, and n is an integer from 1 to 4;Y is a substituent; andX is H or a coupling-off group;provided that the number of carbon atoms contained in R.sub.1, R.sub.2, R.sub.3 and R.sub.4 combined is at least 18 and provided further that any two or more of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be joined to form a ring.Type: GrantFiled: October 4, 1996Date of Patent: November 16, 1999Assignee: Eastman Kodak CompanyInventors: Judith A. Bose, Louis E. Friedrich, David Hoke, Joan C. Potenza, Robert F. Romanet, Stephen P. Singer, Ronald R. Valente
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Patent number: 5969148Abstract: Photographic pyrazolotriazole dye forming coupler compounds of coupler intermediate compounds can be readily prepared in a single reaction medium by reacting certain pyrazolotriazole compounds with nitro-substituted aromatic compounds in the presence of a formate salt and a transition metal catalyst. This salt hydrogenates the nitro group and the carbonate by-product induces reaction of the resulting amine with the pyrazolotriazole compound. Yields and purity are high, and reaction time is reduced with the specific set of conditions and reactants, and environmental impact from waste is reduced. In addition, isolation of aromatic amine intermediates is avoided. The resulting pyrazolotriazole compounds can be used themselves as photographic dye forming couplers or further reacted to prepare useful coupler compounds for photographic use.Type: GrantFiled: December 2, 1998Date of Patent: October 19, 1999Assignee: Eastman Kodak CompanyInventors: Ronald R. Valente, Judith A. Bose
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Patent number: 5681691Abstract: The invention provides a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a dye-forming coupler having formula I: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, and heterocyclic groups;R.sub.2 is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic groups;W is C(O) or S(O).sub.2 ;R.sub.3 is selected from the group consisting of alkyl and aryl groups having a calculated logP of at least 9;Y is a substituent; andX is H or a coupling-off group.Type: GrantFiled: October 4, 1996Date of Patent: October 28, 1997Assignee: Eastman Kodak CompanyInventors: Judith A. Bose, Louis E. Friedrich, David Hoke, Joan C. Potenza, Robert F. Romanet, Stephen P. Singer, Ronald R. Valente
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Patent number: 5403932Abstract: Compounds of the formula: ##STR1## which is further defined herein, possess anti-tumor activity.Type: GrantFiled: June 15, 1994Date of Patent: April 4, 1995Assignee: Research Corporation Technologies, Inc.Inventors: Richard F. Borch, Gregory W. Canute, Ronald R. Valente
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Patent number: 5110937Abstract: Di-cation ether salts are prepared by a reaction sequence which comprises(i) N-alkylating a 2-halopyridine,(ii) reacting the N-alkylated product with a 2-hydroxypyridine in the presence of sufficient organic base to combine with the by-product hydrohalic acid, and(iii) reacting the mono-cation ether thereby produced with an alkylating agent.The process is conducted in the presence of a solvent, such as acetonitrile. The di-cation can be isolated by removal of the solvent, followed by contacting the reaction mixture with an aqueous fluoborate, whereby the di-cation ether precipitates as the fluoborate salt. The di-cation ether is prepared in surprisingly high yield. The process can be conducted in one reaction vessel without isolation of a product intermediate formed in the reaction sequence. The fluoborate product is quite pure. If desired, the fluoborate anion can be removed from the di-cation ether by suspending the di-cation ether fluoborate in water, and reacting it with a potassium salt such as KNO.sub.Type: GrantFiled: August 30, 1989Date of Patent: May 5, 1992Assignee: Eastman Kodak CompanyInventors: Derek D. Chapman, Ronald R. Valente
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Patent number: 4908356Abstract: A compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 may be the same of different and are each independently hydrogen or lower alkyl which may be unsubstituted or monosubstituted with halogen, lower alkoxy or hydroxy with the proviso that the substituent is not the .alpha.-carbon or R.sup.1 and R.sup.2 taken together with the carbon to which they are attached form a morpholino ring;each R.sup.3 is independently hydrogen, lower alkyl, carboxy or carbalkoxy;n is an integer from 0, 1, 2 or 3 andR is hydrogen, lower alkyl, cycloalkyl, arylalkyl aryl or a nitrogen, sulfur or oxygen containing heterocyclic or a heterocyclic lower alkyl and pharmacuetically acceptable salts thereof.Type: GrantFiled: May 25, 1988Date of Patent: March 13, 1990Assignee: Research Corporation Technologies, Inc.Inventors: Richard F. Borch, Ronald R. Valente