Inventor · disambiguated record
David J. Havens
Also filed as: HAVENS DAVID J
6 granted patents·13 citations·filing 2009–2016
74Inventor score
Technology areasE21B
Files withFORUM ENERGY TECHNOLOGIES INC1HEIDECKE KARSTEN1MOUTON DAVID E1WEATHERFORD LAMB1WEATHERFORD TECH HOLDINGS LLC1
Top patents by PatentIndex Score
6 records- 0172US8733447B2Landing string compensatorMOUTON DAVID E·Filed 2009·Granted May 27, 2014·11 cites·22 claims
- 0259US9353603B2Landing string compensatorWEATHERFORD TECHNOLOGY HOLDINGS LLC·Filed 2014·Granted May 31, 2016·1 cites·7 claims
- 0353US9650873B2Landing string compensatorWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted May 16, 2017·0 cites·12 claims
- 0452US9212527B2Pipe handling systemWEATHERFORD LAMB·Filed 2014·Granted Dec 15, 2015·0 cites·20 claims
- 0549US8919841B2Method and apparatus for attachment of a secondary tool handling device to a primary tool handling deviceFORUM ENERGY TECHNOLOGIES INC·Filed 2013·Granted Dec 30, 2014·1 cites·3 claims
- 0644US8833470B2Pipe handling systemHEIDECKE KARSTEN·Filed 2010·Granted Sep 16, 2014·0 cites·31 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →