Bruce E. Penning

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Stillwater, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Face mask that has a filtered exhalation valve
- Patent number 6,805,124
- Issue date Oct 19, 2004
- 3M Innovative Properties Company
- Daniel A. Japuntich
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Face mask that has a filtered exhalation valve
- Patent number 6,584,976
- Issue date Jul 1, 2003
- 3M Innovative Properties Company
- Daniel A. Japuntich
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Face mask that has a filtered exhalation valve
- Publication number 20030005934
- Publication date Jan 9, 2003
- 3M Innovative Properties Company
- Daniel A. Japuntich
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
FACE MASK THAT HAS A FILTERED EXHALATION VALVE
- Publication number 20020023651
- Publication date Feb 28, 2002
- Minnesota Mining and Manufacturing Company
- DANIEL A. JAPUNTICH
- A62 - LIFE-SAVING FIRE-FIGHTING