Robert A. Semotiuk — 4 Patents at Unknown

Robert A. Semotiuk has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1991 and the most recent in December 2013. Robert A. Semotiuk ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert A. Semotiuk in Prince George, BC, CA.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
8596910	Environmental culvert system	Ronald W. Hammerstedt, Michael D. Rae	2013-12-03
6474907	Environmentally compatible archway for road building	Barry C. Nybo	2002-11-05
5216793	Hose fitting removal apparatus	—	1993-06-08
5068953	Hose fitting removal apparatus	—	1991-12-03

Robert A. Semotiuk — 4 Patents

Issued Patents All Time

Patent Widget