Robert A. Douglas — 1 Patent at Berwind

Robert A. Douglas has been granted 1 US patent while listed as an inventor at Berwind. All of these patents were granted in 1989. Robert A. Douglas ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert A. Douglas in Minneapolis, MN, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4810099	Mixer	Peder K. Langsetmo, Masayuki Inoue, Peter M. Koenig, Alex Halasz	1989-03-07

Robert A. Douglas — 1 Patent

Issued Patents All Time

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