Inventor · disambiguated record
Leon B. Stinson
Also filed as: STINSON LEON B · STINSON LEON BERTHAL
3 granted patents·51 citations·filing 1974–1975
72Inventor score
Technology areasE21B
Files withHUGHES TOOL CO3
Top patents by PatentIndex Score
3 records- 0159US3986570ARock bit with quick change connectionHUGHES TOOL CO·Filed 1975·Granted Oct 19, 1976·23 cites·3 claims
- 0256US4019785ADrill bit utilizing lubricant thermal expansion and relief valve for pressure controlHUGHES TOOL CO·Filed 1975·Granted Apr 26, 1977·20 cites·9 claims
- 0333US3941197ARotary percussion earth boring bitHUGHES TOOL CO·Filed 1974·Granted Mar 2, 1976·8 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →