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Gary J. Drtina
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Woodbury, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Crosslinked isocyanate functional polymer supports
Patent number
6,018,009
Issue date
Jan 25, 2000
3M Innovative Properties Company
Steven M. Heilmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crosslinked isocyanate functional polymer supports
Patent number
5,760,152
Issue date
Jun 2, 1998
Minnesota Mining and Manufacturing Company
Steven M. Heilmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Crosslinked isocyanate-functional polymer supports
Patent number
5,679,779
Issue date
Oct 21, 1997
Minnesota Mining and Manufacturing
Steven M. Heilmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cartridge filters with insoluble enzyme particulates contained thereon
Patent number
5,614,105
Issue date
Mar 25, 1997
Minnesota Mining and Manufacturing Company
Steven M. Heilmann
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Cartridge filters with insoluble enzyme particulates contained thereon
Patent number
5,478,466
Issue date
Dec 26, 1995
Minnesota Mining and Manufacturing Company
Steven M. Heilmann
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of isolating and purifying a biomacromolecule
Patent number
5,468,847
Issue date
Nov 21, 1995
Minnesota Mining and Manufacturing Company
Steven M. Heilmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Supports having azlactone-functional surfaces, adduct supports, and...
Patent number
5,451,453
Issue date
Sep 19, 1995
Minnesota Mining and Manufacturing Company
David R. Gagnon
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of preparing polycyclic diamines
Patent number
5,315,006
Issue date
May 24, 1994
Minnesota Mining and Manufacturing Company
Gary J. Drtina
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Polycyclic diamines
Patent number
5,310,910
Issue date
May 10, 1994
Minnesota Mining and Manufacturing Company
Gary J. Drtina
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Polycyclic diamines
Patent number
5,221,793
Issue date
Jun 22, 1993
Minnesota Mining and Manufacturing Company
Gary J. Drtina
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Process for hydroxyalkylation of fluorinated alcohols
Patent number
5,157,159
Issue date
Oct 20, 1992
Minnesota Mining and Manufacturing Company
Eugene P. Janulis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polycyclic diamines and method of preparation
Patent number
5,124,454
Issue date
Jun 23, 1992
Minnesota Mining and Manufacturing Company
Gary J. Drtina
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Abrasive article with conductive, doped, conjugated, polymer coat a...
Patent number
5,061,294
Issue date
Oct 29, 1991
Minnesota Mining and Manufacturing Company
Walter L. Harmer
B24 - GRINDING POLISHING