Peter D. Halstead

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Knoxville, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Football helmet having a removable inflatable liner and a method fo...
- Patent number 6,226,801
- Issue date May 8, 2001
- Adams USA, Inc.
- Cherie Alexander
- A42 - HEADWEAR
Information Patent Grant
Helmet fitting system
- Patent number 6,178,560
- Issue date Jan 30, 2001
- Southern Impact Research Center, LLC
- Peter David Halstead
- A42 - HEADWEAR
Information Patent Grant
Football helmet with inflatable liner
- Patent number 6,073,271
- Issue date Jun 13, 2000
- Adams USA, Inc.
- Cherie Alexander
- A42 - HEADWEAR
Information Patent Grant
Protective helmet with self-contained air pump
- Patent number 5,083,320
- Issue date Jan 28, 1992
- Athletic Helmet, Inc.
- Peter D. Halstead
- A42 - HEADWEAR