David E. Calapp

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Redmond, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite hockey stick shaft and process for making same
- Patent number 5,865,696
- Issue date Feb 2, 1999
- David E. Calapp
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Process for making a composite hockey stick shaft
- Patent number 5,746,955
- Issue date May 5, 1998
- Christian Brothers, Inc.
- David E. Calapp
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL