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Ronald F. Ofstead
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Maplewood, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Composition containing biocompatible polymerization accelerator and...
Patent number
8,202,833
Issue date
Jun 19, 2012
SurModics, Inc.
Dale G. Swan
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Encapsulated cells using positively-charged initiator polymer
Patent number
8,143,043
Issue date
Mar 27, 2012
SurModics, Inc.
Stephen J. Chudzik
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Attachment of molecules to surfaces
Patent number
8,129,159
Issue date
Mar 6, 2012
SurModics, Inc.
Ronald F. Ofstead
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Bioactive agent release coating and controlled humidity method
Patent number
7,833,548
Issue date
Nov 16, 2010
SurModics, Inc.
Ralph A. Chappa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Attachment of molecules to surfaces
Patent number
7,829,317
Issue date
Nov 9, 2010
SurModics, Inc.
Ronald F. Ofstead
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for encapsulation of cellular material using a charged initi...
Patent number
7,585,499
Issue date
Sep 8, 2009
SurModics, Inc.
Stephen J. Chudzik
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Attachment of molecules to surfaces
Patent number
7,309,593
Issue date
Dec 18, 2007
SurModics, Inc.
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Bioactive agent release coating and controlled humidity method
Patent number
7,097,850
Issue date
Aug 29, 2006
SurModics, Inc.
Ralph A. Chappa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of sealing a gelatin capsule
Patent number
5,188,688
Issue date
Feb 23, 1993
Minnesota Mining and Manufacturing Company
James R. Boardman
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Article having non-crosslinked crystallized polymer coatings
Patent number
4,977,901
Issue date
Dec 18, 1990
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hydroxy-substituted polymeric shaped hydrogel article
Patent number
4,921,884
Issue date
May 1, 1990
Minnesota Mining and Manufacturing Company
W. James Hammer
G02 - OPTICS
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,921,908
Issue date
May 1, 1990
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hydrogel implant lens construction reconfigured dehydrated re-hydra...
Patent number
4,919,662
Issue date
Apr 24, 1990
Minnesota Mining and Manufacturing Company
Randall L. Knoll
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polymer blends with high water absorption
Patent number
4,859,719
Issue date
Aug 22, 1989
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,840,992
Issue date
Jun 20, 1989
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process of forming a hydroxy-substitute polymeric shaped article
Patent number
4,786,446
Issue date
Nov 22, 1988
Minnesota Mining and Manufacturing Company
W. James Hammar
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,780,514
Issue date
Oct 25, 1988
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer blends with high water absorption
Patent number
4,771,089
Issue date
Sep 13, 1988
Minnesota Mining and Manufacturing Co.
Ronald F. Ofstead
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,694,037
Issue date
Sep 15, 1987
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Article coated with copolymer of poly(vinyl alcohol)
Patent number
4,693,939
Issue date
Sep 15, 1987
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for thermoformed articles
Patent number
4,673,539
Issue date
Jun 16, 1987
Minnesota Mining and Manufacturing Company
W. James Hammar
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,618,649
Issue date
Oct 21, 1986
Minnesota Mining and Manufacturing Company
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Patent number
4,528,325
Issue date
Jul 9, 1985
Minnesota Mining and Manufacturing Co.
Ronald F. Ofstead
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Enzymatically dispersible non-woven webs
Patent number
4,009,313
Issue date
Feb 22, 1977
Minnesota Mining and Manufacturing Company
George H. Crawford
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
BIOACTIVE AGENT RELEASE COATING AND CONTROLLED HUMIDITY METHOD
Publication number
20110054417
Publication date
Mar 3, 2011
SURMODICS, INC.
Ralph A. Chappa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ATTACHMENT OF MOLECULES TO SURFACES
Publication number
20110009292
Publication date
Jan 13, 2011
SURMODICS, INC.
Ronald F. Ofstead
C40 - COMBINATORIAL CHEMISTRY
Information
Patent Application
METHOD AND COMPOSITION FOR BIOACTIVE AGENT RELEASE IN VIVO
Publication number
20100158799
Publication date
Jun 24, 2010
SURMODICS, INC.
Stephen J. Chudzik
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Charged initiator polymers and methods of use
Publication number
20090317887
Publication date
Dec 24, 2009
Stephen J. Chudzik
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Attachment of molecules to surfaces
Publication number
20090042742
Publication date
Feb 12, 2009
SURMODICS, INC.
Ronald F. Ofstead
C40 - COMBINATORIAL CHEMISTRY
Information
Patent Application
Bioactive agent release coating and controlled humidity method
Publication number
20070248637
Publication date
Oct 25, 2007
Surmodics, Inc.
Ralph A. Chappa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Biocompatible polymerization accelerators
Publication number
20050112086
Publication date
May 26, 2005
Surmodics, Inc.
Dale G. Swan
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Attachment of molecules to surfaces
Publication number
20050074478
Publication date
Apr 7, 2005
SURMODICS, INC.
Ronald F. Ofstead
C40 - COMBINATORIAL CHEMISTRY
Information
Patent Application
Charged initiator polymers and methods of use
Publication number
20040202774
Publication date
Oct 14, 2004
Surmodics, Inc.
Stephen J. Chudzik
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Bioactive agent release coating with aromatic poly(meth)acrylates
Publication number
20030232087
Publication date
Dec 18, 2003
Laurie R. Lawin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Bioactive agent release coating and controlled humidity method
Publication number
20030232122
Publication date
Dec 18, 2003
Ralph A. Chappa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Method and system for providing bioactive agent release coating
Publication number
20020188037
Publication date
Dec 12, 2002
Stephen J. Chudzik
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE