Inventor · disambiguated record
Darrel M. Wooldridge
Also filed as: WOOLDRIDGE DARREL · WOOLDRIDGE DARREL M
5 granted patents·136 citations·filing 1975–1977
84Inventor score
Top patents by PatentIndex Score
5 records- 0191US4044838AAutomatic control for ripper toolAMERICAN TRACTOR EQUIP CORP·Filed 1975·Granted Aug 30, 1977·46 cites·17 claims
- 0289USD253686SControl knobGEM PRODUCTS INC·Filed 1977·Granted Dec 18, 1979·24 cites·1 claims
- 0388US4120364AAutomatic control device for tractor mounted toolsAMERICAN TRACTOR EQUIP CORP·Filed 1977·Granted Oct 17, 1978·37 cites·8 claims
- 0476US4159474ADepth indicating means for a tractor supported toolAMERICAN TRACTOR EQUIP CORP·Filed 1976·Granted Jun 26, 1979·20 cites·6 claims
- 0552US4135471ACombination knob and dial control for cold control devicesGEM PRODUCTS INC·Filed 1977·Granted Jan 23, 1979·9 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →