Inventor · disambiguated record
John C. Zimmerman
Also filed as: ZIMMERMAN JOHN · ZIMMERMAN JOHN C
9 granted patents·2 pending applications·298 citations·filing 1977–2019
90Inventor score
Top patents by PatentIndex Score
11 records- 0190US6137062ABall grid array with recessed solder ballsMOTOROLA INC·Filed 1998·Granted Oct 24, 2000·93 cites·23 claims
- 0284US4144937AValve closing method and apparatus for use with an oil well valveHALLIBURTON CO·Filed 1977·Granted Mar 20, 1979·60 cites·8 claims
- 0376US4438933AHydraulic set high temperature isolation packerHALLIBURTON CO·Filed 1982·Granted Mar 27, 1984·45 cites·18 claims
- 0474US4258793AOil well testing string bypass valveHALLIBURTON CO·Filed 1979·Granted Mar 31, 1981·29 cites·10 claims
- 0553US5355959ADifferential pressure operated circulating and deflation valveHALLIBURTON CO·Filed 1992·Granted Oct 18, 1994·27 cites·27 claims
- 0651US4328866ACheck valve assemblyHALLIBURTON CO·Filed 1980·Granted May 11, 1982·20 cites·26 claims
- 0744US2011132160A1Hand tools and related methodsZIMMERMAN JOHN C·Filed 2009·Application pending·0 cites
- 0842US6997253B2Anti-rotation method and apparatus for limiting rotation of cementing plugsHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Feb 14, 2006·3 cites·17 claims
- 0940US2019313588A1Airflow-controlled growing platform system and methods of use related theretoHARVEST AIR LLC·Filed 2019·Application pending·0 cites
- 1039US6174244B1Golf club, kit used with a golf club and method of adjusting a golf club gripFiled 1998·Granted Jan 16, 2001·13 cites·3 claims
- 1129US4470465ABall type shut in toolHALLIBURTON CO·Filed 1983·Granted Sep 11, 1984·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →