Robert Barnwell — 2 Patents at Unknown

Robert Barnwell has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1984 and the most recent in August 1993. Robert Barnwell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Barnwell in Pittsburg, TX, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5238451	Light eliminator for poultry house	Fred Wulf	1993-08-24
4467052	Tray for packaging food products	David R. Frye	1984-08-21

Robert Barnwell — 2 Patents

Issued Patents All Time

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