M. Robert Derolf — 2 Patents at Pq

M. Robert Derolf has been granted 2 US patents while listed as an inventor at Pq. The first was granted in 1982 and the most recent in September 1992. M. Robert Derolf ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list M. Robert Derolf in Pottstown, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5149553	Beer processing and composition	Kenneth A. Berg, Reinhard Witt	1992-09-22
4346071	Rehydrated silica gel dentifrice abrasive	Anthony L. Dent, Elliot P. Hertzenberg	1982-08-24

M. Robert Derolf — 2 Patents

Issued Patents All Time

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