David P. Walker

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Wallsend, GB

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Patents Grantslast 30 patents

Information Patent Grant
Lead-acid battery separators with ultra low resistivity and sustain...
- Patent number 9,997,756
- Issue date Jun 12, 2018
- Amtek Research International LLC
- Richard W. Pekala
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
LEAD-ACID BATTERY SEPARATORS WITH ULTRA LOW RESISTIVITY AND SUSTAIN...
- Publication number 20160028060
- Publication date Jan 28, 2016
- Amtek Research International LLC
- Richard W. Pekala
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL