Patents by Inventor Roderick William Jonathon Bowers
Roderick William Jonathon Bowers 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: 7160953Abstract: A biocompatibilizing process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilized by coating it with a coating composition containing a polymer formed from a radical polymerizable monomers including a radical polymerisable zwitterionic monomer and a radical polymerizable monomer containing a reactive group to form a polymer having zwitterionic groups and pendant reactive groups and the said pendant reactive groups are reacted to form covalent bonds with said substrate pendant functional group and thereby form a stable coating of polymer on the said surface.Type: GrantFiled: March 10, 2004Date of Patent: January 9, 2007Assignee: Biocompatibles UK LimitedInventors: Roderick William Jonathon Bowers, Stephen Alister Jones, Peter William Stratford
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Publication number: 20040176556Abstract: A biocompatibilising process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilised by coating it with a coating composition containing a polymer formed from a radical polymerisable monomers including a radical polymerisable zwitterionic monomer and a radical polymerisable monomer containing a reactive group to form a polymer having zwitterionic groups and pendant reactive groups and the said pendant reactive groups are reacted to form covalent bonds with said substrate pendant functional group and thereby form a stable coating of polymer on the said surface.Type: ApplicationFiled: March 10, 2004Publication date: September 9, 2004Applicant: BIOCOMPATIBLES LIMITEDInventors: Roderick William Jonathon Bowers, Stephen Alister Jones, Peter William Stratford
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Patent number: 6743878Abstract: A biocompatibilising process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilised by coating it with a coating composition containing a polymer formed from a radical polymerisable monomers including a radical polymerisable zwitterionic monomer and a radical polymerisable monomer containing a reactive group to form a polymer having zwitterionic groups and pendant reactive groups and the said pendant reactive groups are reacted to form covalent bonds with said substrate pendant functional group and thereby form a stable coating of polymer on the said surface.Type: GrantFiled: September 30, 2002Date of Patent: June 1, 2004Assignee: Biocompatibles UK LimitedInventors: Roderick William Jonathon Bowers, Stephen Alister Jones, Peter William Stratford
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Publication number: 20030190405Abstract: A biocompatibilising process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilised by coating it with a coating composition containing a polymer formed from a radical polymerisable monomers including a radical polymerisable zwitterionic monomer and a radical polymerisable monomer containing a reactive group to form a polymer having zwitterionic groups and pendant reactive groups and the said pendant reactive groups are reacted to form covalent bonds with said substrate pendant functional group and thereby form a stable coating of polymer on the said surface.Type: ApplicationFiled: September 30, 2002Publication date: October 9, 2003Applicant: BIOCOMPATIBLES LIMITEDInventors: Roderick William Jonathon Bowers, Stephen Alister Jones, Peter William Stratford
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Publication number: 20020165324Abstract: Cross-linked copolymers which are obtained by polymerising a neutral diluent monomer or monomers, a monomer or monomers bearing a center of permanent positive charge, and a bifunctional and/or trifunctional cross-linking agent, are suitable for use in contact lenses. Process for producing them by copolymerisation, contact lens material comprising them, contact lenses made of them and processes for producing contact lenses from them.Type: ApplicationFiled: February 28, 2002Publication date: November 7, 2002Applicant: BIOCOMPATIBLES LIMITEDInventors: Roderick William Jonathon Bowers, Peter William Stratford, Stephen Alister Jones
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Patent number: 6423761Abstract: Cross-linked copolymers which are obtainable by polymerising a neutral diluent monomer or monomers, a monomer or monomers bearing a center of permanent positive charge, and a bifunctional and/or trifunctional cross-linking agent, are suitable for use in contact lenses. Process for producing them by copolymerization, contact lens material comprising them, contact lenses made of them and processes for producing contact lenses from them.Type: GrantFiled: June 6, 1995Date of Patent: July 23, 2002Assignee: Biocompatibles LimitedInventors: Roderick William Jonathon Bowers, Peter William Stratford, Stephen Alister Jones
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Patent number: 6420453Abstract: Cross-linked copolymers which are obtainable by polymerizing a neutral diluent monomer or monomers, a monomer or monomers bearing a center of permanent positive charge, and a bifunctional and/or trifunctional cross-linking agent, are suitable for use in contact lenses. Process for producing them by copolymerization, contact lens material comprising them, contact lenses made of them and processes for producing contact lenses from them.Type: GrantFiled: April 28, 1993Date of Patent: July 16, 2002Assignee: Biocompatibles LimitedInventors: Roderick William Jonathon Bowers, Peter William Stratford, Stephen Alister Jones
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Patent number: 6090901Abstract: A non-crosslinked polymer having pendant zwitterionic groups and pendant functional groups can be coated from a coating composition onto a surface having pendant coreactive functional groups and, after coating, may be cured so that covalent bonds are formed between the coreactive functional groups on the polymer and the surface. Alternatively the polymer can be crosslinked after coating, by formation of covalent intermolecular cross-links between coreactive pendant functional groups on the polymer. The zwitterionic pendant groups preferably have, as the anion, a phosphate ester group, and as the cation, a quaternary ammonium group. The polymer coating is stable and provides improved biocompatibility, especially haemocompatibility.Type: GrantFiled: January 5, 1998Date of Patent: July 18, 2000Assignee: Biocompatibles LimitedInventors: Roderick William Jonathon Bowers, Stephen Alister Jones, Peter William Stratford