Inventor · disambiguated record
Leslie Howell
Also filed as: HOWELL LESLIE
4 granted patents·14 citations·filing 2015–2020
70Inventor score
Technology areasE21B
Files withKELLAM BELO4
Top patents by PatentIndex Score
4 records- 0190US9863213B1Retrievable back pressure valve and method of using sameKELLAM BELO·Filed 2015·Granted Jan 9, 2018·11 cites·4 claims
- 0277US10626701B1Retrievable back pressure valve and method of using sameKELLAM BELO·Filed 2018·Granted Apr 21, 2020·2 cites·2 claims
- 0375US11220883B1Retrievable back pressure valve and method of using sameKELLAM BELO·Filed 2020·Granted Jan 11, 2022·1 cites·1 claims
- 0454US10113391B1Retrievable back pressure valve and method of using sameKELLAM BELO·Filed 2017·Granted Oct 30, 2018·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →