Inventor · disambiguated record
James D. Roach
Also filed as: ROACH JAMES D
3 granted patents·1 pending application·362 citations·filing 1982–2009
76Inventor score
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4 records- 0196US7563076B2Variable rate pumping systemHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Jul 21, 2009·274 cites·22 claims
- 0294US4440404APacking arrangementHALLIBURTON CO·Filed 1982·Granted Apr 3, 1984·85 cites·23 claims
- 0359US2009252616A1Variable Rate Pumping SystemHALLIBURTON ENERGY SERV INC·Filed 2009·Application pending·0 cites
- 0448US7713033B2Double-acting, duplex pump controlled by two, two position spool valvesHALLIBURTON ENERGY SERV INC·Filed 2004·Granted May 11, 2010·3 cites·87 claims
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