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Craig A. Perman
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St. Paul, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Well-less filtration device
Patent number
7,311,880
Issue date
Dec 25, 2007
3M Innovative Properties Company
Craig A. Perman
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Welded sample preparation articles and methods
Patent number
7,300,801
Issue date
Nov 27, 2007
3M Innovative Properties Company
Robert A. Pranis
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Uniform small cell foams and a continuous process for making same
Patent number
6,638,985
Issue date
Oct 28, 2003
3M Innovative Properties Co.
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Uniform small cell foams and a continuous process for making same
Patent number
6,593,380
Issue date
Jul 15, 2003
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Uniform small cell foams and a continuous process for making same
Patent number
6,586,482
Issue date
Jul 1, 2003
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Uniform small cell foams and a continuous process for making same
Patent number
6,586,489
Issue date
Jul 1, 2003
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Extraction articles and methods
Patent number
6,492,183
Issue date
Dec 10, 2002
3M Innovative Properties Company
Craig A. Perman
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Medicinal aerosol solution formulation with biocompatible polymer
Patent number
6,416,742
Issue date
Jul 9, 2002
3M Innovative Properties Company
James S. Stefely
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Uniform small cell foams and a continuous process for making same
Patent number
6,391,931
Issue date
May 21, 2002
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Biocompatible compounds for pharmaceutical drug delivery systems
Patent number
6,126,919
Issue date
Oct 3, 2000
3M Innovative Properties Company
James S. Stefely
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of making thermoplastic foamed articles using supercritical...
Patent number
5,670,102
Issue date
Sep 23, 1997
Minnesota Mining and Manufacturing Company
Craig A. Perman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of polymer impregnation
Patent number
5,508,060
Issue date
Apr 16, 1996
Minnesota Mining and Manufacturing Company
Craig A. Perman
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Supercritical fluid extraction involving hydrofluoroalkanes
Patent number
5,481,058
Issue date
Jan 2, 1996
Minnesota Mining and Manufacturing Company
John A. Blackwell
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Methods of polymer impregnation
Patent number
5,340,614
Issue date
Aug 23, 1994
Minnesota Mining and Manufacturing Company
Craig A. Perman
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Composition and method for purifying water
Patent number
5,320,773
Issue date
Jun 14, 1994
AquaTechnica Inc.
Craig A. Perman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Supersensitization of red sensitized, silver halide emulsions with...
Patent number
5,306,612
Issue date
Apr 26, 1994
Minnesota Mining and Manufacturing Company
James B. Philip
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Composition and method for purifying water
Patent number
5,071,587
Issue date
Dec 10, 1991
AquaTechnica, Inc.
Craig A. Perman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Red and infrared films containing 5-substituted-thio-1,2,3,4-thiatr...
Patent number
4,914,015
Issue date
Apr 3, 1990
Minnesota Mining and Manufacturing Company
James B. Philip
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Supersensitization of silver halide emulsion
Patent number
4,780,404
Issue date
Oct 25, 1988
Minnesota Mining and Manufacturing Company
Peter D. Sills
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Welded sample preparation articles and methods
Publication number
20050058576
Publication date
Mar 17, 2005
3M Innovative Properties Company
Robert A. Pranis
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Modular system for separating components of a liquid sample
Publication number
20030226796
Publication date
Dec 11, 2003
3M Innovative Properties Company
Glen H. Bayer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Uniform small cell foams and a continuous process for making same
Publication number
20020169224
Publication date
Nov 14, 2002
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Well-less filtration device
Publication number
20020155034
Publication date
Oct 24, 2002
3M Innovative Properties Company
Craig A. Perman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Uniform small cell foams and a continuous process for making same
Publication number
20020151607
Publication date
Oct 17, 2002
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Uniform small cell foams and a continuous process for making same
Publication number
20020151608
Publication date
Oct 17, 2002
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Uniform small cell foams and a continuous process for making same
Publication number
20020137808
Publication date
Sep 26, 2002
3M Innovative Properties Company
Mark David Gehlsen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL