Inventor · disambiguated record
Horst K. F. Barthel
Also filed as: BARTHEL HORST · BARTHEL HORST K F
4 granted patents·158 citations·filing 1977–1984
80Inventor score
Top patents by PatentIndex Score
4 records- 0184US4481121AViscosifier for oil base drilling fluidsHUGHES TOOL CO·Filed 1984·Granted Nov 6, 1984·54 cites·6 claims
- 0283US4222988AApparatus for removing hydrocarbons from drill cuttingsOIL BASE GERMANY GMBH·Filed 1978·Granted Sep 16, 1980·74 cites·3 claims
- 0365US4206902AInner element for a flow regulatorVAPOR CORP·Filed 1977·Granted Jun 10, 1980·20 cites·20 claims
- 0448US4417900AHigh temperature solid fire starterBARTHEL HORST K F·Filed 1982·Granted Nov 29, 1983·10 cites·5 claims
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