Darryl F. Klassen

Follow

Person

London, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Furnace filter adapters and braces
- Patent number 8,388,717
- Issue date Mar 5, 2013
- 3M Innovative Properties Company
- David E. Livingstone
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Sustained release microcapsules
- Patent number 7,179,480
- Issue date Feb 20, 2007
- 3M Innovative Properties Company
- Darryl F. Klassen
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Stabilized active materials
- Patent number 6,540,991
- Issue date Apr 1, 2003
- 3M Innovative Properties Company
- Darryl F. Klassen
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
FURNACE FILTER ADAPTERS AND BRACES
- Publication number 20100101197
- Publication date Apr 29, 2010
- 3M Innovative Properties Company
- David E. Livingstone
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Sustained release microcapsules
- Publication number 20030202999
- Publication date Oct 30, 2003
- 3M Innovative Properties Company
- Darryl F. Klassen
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
STABILIZED ACTIVE MATERIALS
- Publication number 20020146387
- Publication date Oct 10, 2002
- Darryl F. Klassen
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC