Inventor · disambiguated record
Douglas Watson
Also filed as: WATSON DOUGLAS · WATSON DOUGLAS H
3 granted patents·1 pending application·69 citations·filing 1989–2019
62Inventor score
Top patents by PatentIndex Score
4 records- 0189US5038136ATraffic control device for school busesWATSON DOUGLAS·Filed 1989·Granted Aug 6, 1991·69 cites·29 claims
- 0239US12296872B2Method and apparatus for determining a position of a vehicleHITACHI RAIL GTS UK LTD·Filed 2019·Granted May 13, 2025·0 cites·20 claims
- 0337US12352580B2Method and apparatus for determining a position of a vehicleHITACHI RAIL GTS UK LTD·Filed 2019·Granted Jul 8, 2025·0 cites·22 claims
- 0428US2008185813A1Portable well flare equipment trailerWATSON DOUGLAS H·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →