Richard Alan Oleson

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Protective helmet with vertically adjustable headband
- Patent number 6,862,747
- Issue date Mar 8, 2005
- E. D. Bullard Company
- Richard Alan Oleson
- A42 - HEADWEAR
Information Patent Grant
Air delivery and exhalation exhaust system for protective helmets
- Patent number 5,549,104
- Issue date Aug 27, 1996
- E. D. Bullard Company
- Kevin E. Crump
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fire fighter's face shield assembly
- Patent number 5,257,417
- Issue date Nov 2, 1993
- E. D. Bullard Company
- Richard A. Oleson
- A42 - HEADWEAR
Information Patent Grant
Protective helmet
- Patent number 5,150,479
- Issue date Sep 29, 1992
- E. D. Bullard Company
- Richard A. Oleson
- A42 - HEADWEAR
Information Patent Grant
Adjustable head band suspension system for use with hard hat shell
- Patent number 4,888,831
- Issue date Dec 26, 1989
- E. D. Bullard Company
- Richard A. Oleson
- A42 - HEADWEAR

Patents Applicationslast 30 patents

Information Patent Application
Protective helmet with a system allowing for attachment of intercha...
- Publication number 20040181856
- Publication date Sep 23, 2004
- Richard Alan Oleson
- A42 - HEADWEAR
Information Patent Application
Protective helmet with vertically adjustable headband
- Publication number 20040163160
- Publication date Aug 26, 2004
- Richard Alan Oleson
- A42 - HEADWEAR