Inventor · disambiguated record
David S. Cramer
Also filed as: CRAMER DAVID · CRAMER DAVID S · CRAMER DAVID STUART
9 granted patents·2 pending applications·29 citations·filing 2011–2020
84Inventor score
Technology areasE21B
Files withDYNOMAX DRILLING TOOLS USA INC3APS TECH INC2GEN DOWNHOLE TECHNOLOGIES LTD2CRAMER DAVID S1CRAMER DAVID STUART1
Top patents by PatentIndex Score
11 records- 0186US9328576B2System, method and apparatus for controlling fluid flow through drill stringGEN DOWNHOLE TECHNOLOGIES LTD·Filed 2013·Granted May 3, 2016·12 cites·39 claims
- 0283US10107073B2System, method and apparatus for controlling fluid flow through drill stringGENERAL DOWNHOLE TECH LTD·Filed 2016·Granted Oct 23, 2018·5 cites·19 claims
- 0378US10544637B2Downhole flow diversion device with oscillation damperDYNOMAX DRILLING TOOLS USA INC·Filed 2015·Granted Jan 28, 2020·3 cites·26 claims
- 0470US9765613B2Drilling system and electromagnetic telemetry tool with an electrical connector assembly and associated methodsAPS TECH INC·Filed 2014·Granted Sep 19, 2017·4 cites·39 claims
- 0566US9187997B2System, method and apparatus for reducing shock and vibration in down hole toolsCRAMER DAVID STUART·Filed 2013·Granted Nov 17, 2015·4 cites·17 claims
- 0658US11041351B2Downhole flow diversion device with oscillation damperDYNOMAX DRILLING TOOLS USA INC·Filed 2019·Granted Jun 22, 2021·0 cites·17 claims
- 0758US9976413B2Pressure locking device for downhole toolsAPS TECH INC·Filed 2015·Granted May 22, 2018·1 cites·22 claims
- 0856US11149525B2System, method and apparatus for controlling fluid flow through drill stringDYNOMAX DRILLING TOOLS USA INC·Filed 2018·Granted Oct 19, 2021·0 cites·20 claims
- 0940US2014345949A1Seal system for downhole toolGEN DOWNHOLE TECHNOLOGIES LTD·Filed 2014·Application pending·0 cites
- 1037US2012247832A1System, method and apparatus for protecting downhole components from shock and vibrationCRAMER DAVID S·Filed 2011·Application pending·0 cites
- 1132US11852015B2Rotary steerable drilling systemSPARROW DOWNHOLE TOOLS LTD·Filed 2020·Granted Dec 26, 2023·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →