Assignee
PENNISH JOHN S
3 granted patents·32 citations·filing 1976–1979
Top patents by PatentIndex Score
3 records- 0171US4054641AMethod for making vitreous silicaPENNISH JOHN S·Filed 1976·Granted Oct 18, 1977·12 cites·11 claims
- 0255US4272488AApparatus for producing and casting liquid siliconPENNISH JOHN S·Filed 1979·Granted Jun 9, 1981·14 cites·7 claims
- 0337US4123229AMethod and apparatus for making vitreous silicaPENNISH JOHN S·Filed 1977·Granted Oct 31, 1978·6 cites·11 claims
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