Inventor · Waterloo, IA, US

Douglas M. Durant

6Patents
3h-index
9Co-inventors
42Inventor score

Filing activity: Jan 31, 1989 → Oct 17, 1996

Most-cited inventions

PatentTitleAreaCited byStatus
US4881573A Female hydraulic coupler with push-connect and lever disconnect Emerging Cross-Sectional Technologies 39 Expired
US5394701A Brake valve with prefill chamber unloading valve Performing Operations; Transporting 4 Expired
US5245827A Supply valve arrangement for closed center hydraulic system Mechanical Engineering; Lighting; Heating 4 Expired
US5778672A Brake valve Performing Operations; Transporting 2 Expired
US5400595A Brake valve with prefill chamber unloading Performing Operations; Transporting 1 Expired
USD326709S Selective control valve used to operate implements attached to a tractor General 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.