Inventor · disambiguated record
David L. Gruller
Also filed as: GRULLER DAVID L
3 granted patents·106 citations·filing 1976–1980
75Inventor score
Top patents by PatentIndex Score
3 records- 0169US4416472AHolddown and packoff apparatusSMITH INTERNATIONAL·Filed 1980·Granted Nov 22, 1983·40 cites·20 claims
- 0266US4408783AHolddown apparatusSMITH INTERNATIONAL·Filed 1980·Granted Oct 11, 1983·38 cites·16 claims
- 0365US4064619AMethod of joining plastic coated pipeZAP LOK SYSTEMS INTERNATIONAL·Filed 1976·Granted Dec 27, 1977·28 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →