Inventor · disambiguated record
Donald S. Black
Also filed as: BLACK DONALD S
3 granted patents·93 citations·filing 1977–1978
75Inventor score
Technology areasE21B
Files withPALMER ENG CO LTD3
Top patents by PatentIndex Score
3 records- 0177US4126181AMethod and apparatus for formation fracturing with foam having greater proppant concentrationPALMER ENG CO LTD·Filed 1977·Granted Nov 21, 1978·49 cites·18 claims
- 0258US4176064AMixture concentratorPALMER ENG CO LTD·Filed 1978·Granted Nov 27, 1979·24 cites·30 claims
- 0349US4183813AMixture concentratorPALMER ENG CO LTD·Filed 1978·Granted Jan 15, 1980·20 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →