Douglas H. Warenback — 5 Patents at Tegal

Douglas H. Warenback has been granted 5 US patents while listed as an inventor at Tegal. The first was granted in 1985 and the most recent in December 2007. Douglas H. Warenback ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Douglas H. Warenback in San Rafael, CA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
D557684	Wireless headphone	Mark Stephen Pundsack, Norman Wai Lee	2007-12-18
4984954	Spatula for wafer transport	Josef T. Hoog	1991-01-15
4867631	Spatula for wafer transport	Josef T. Hoog	1989-09-19
4780169	Non-uniform gas inlet for dry etching apparatus	Mark M. Stark, David J. Drage	1988-10-25
4547247	Plasma reactor chuck assembly	Thomas M. Rathmann, Ninko T. Mirkovich	1985-10-15

Douglas H. Warenback — 5 Patents

Issued Patents All Time

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