James A. Powell

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Akron, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Clean air ducts and methods for the manufacture thereof
- Patent number 6,041,824
- Issue date Mar 28, 2000
- Steere Enterprises, Inc.
- James A. Powell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Clean air ducts and methods for the manufacture thereof
- Patent number 5,682,924
- Issue date Nov 4, 1997
- Steere Enterprises, Inc.
- James A. Powell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Methods for the manufacture of clean air ducts
- Patent number 5,529,743
- Issue date Jun 25, 1996
- Steere Enterprises, Inc.
- James A. Powell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL