John R. Haynes has been granted 9 US patents while listed as an inventor at Simplexgrinnell Lp. The first was granted in 1980 and the most recent in September 2023. John R. Haynes ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John R. Haynes in Tulsa, OK, US.