Mark Ferguson

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Cynthiana, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Ratchet mechanism with unitary knob and pinion construction
- Patent number 7,043,772
- Issue date May 16, 2006
- E. D. Bullard Company
- Eric Bielefeld
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Protective helmet and method of making same
- Patent number 6,609,254
- Issue date Aug 26, 2003
- E. D. Bullard Company
- Eric Bielefeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Ratchet mechanism with unitary knob and pinion construction
- Publication number 20060048285
- Publication date Mar 9, 2006
- Eric Bielefeld
- A42 - HEADWEAR
Information Patent Application
Protective helmet and method of making same
- Publication number 20020116749
- Publication date Aug 29, 2002
- Eric Bielefeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL