Inventor · disambiguated record
Randall S. Shafer
Also filed as: SHAFER RANDALL S · SHAFER RANDALL SCOTT
38 granted patents·10 pending applications·126 citations·filing 2011–2024
97Inventor score
Files withCONOCOPHILLIPS CO30NOBLE PETER G11KEPPEL OFFSHORE & MARINE TECHNOLOGY CT PTE LTD4SHAFER RANDALL S2AURORA RAVI P1
Top patents by PatentIndex Score
48 records- 0198US11401777B2Through tubing P and A with two-material plugsCONOCOPHILLIPS CO·Filed 2020·Granted Aug 2, 2022·8 cites·20 claims
- 0296US10648279B2Helical coil annular access plug and abandonmentCONOCOPHILLIPS CO·Filed 2018·Granted May 12, 2020·8 cites·8 claims
- 0396US10316612B2Two-material P and A plugCONOCOPHILLIPS CO·Filed 2018·Granted Jun 11, 2019·10 cites·13 claims
- 0495US10871050B2Nano-thermite well plugCONOCOPHILLIPS CO·Filed 2017·Granted Dec 22, 2020·11 cites·21 claims
- 0595US10738567B2Through tubing P and A with two-material plugsCONOCOPHILLIPS CO·Filed 2017·Granted Aug 11, 2020·9 cites·11 claims
- 0694US11753898B2PandA setting with exothermic materialCONOCOPHILLIPS CO·Filed 2022·Granted Sep 12, 2023·2 cites·18 claims
- 0793US12129735B2Tool for metal plugging or sealing of casingCONOCOPHILLIPS CO·Filed 2022·Granted Oct 29, 2024·3 cites·20 claims
- 0893US10760374B2Tool for metal plugging or sealing of casingCONOCOPHILLIPS CO·Filed 2017·Granted Sep 1, 2020·13 cites·28 claims
- 0992US11421506B2Helical coil annular access plug and abandonmentCONOCOPHILLIPS CO·Filed 2021·Granted Aug 23, 2022·2 cites·10 claims
- 1091US11377925B2Through tubing P and A with bismuth alloysCONOCOPHILLIPS CO·Filed 2018·Granted Jul 5, 2022·8 cites·24 claims
- 1185US8911179B2Dual-derrick ice-worthy jack-up drilling unitNOBLE PETER G·Filed 2012·Granted Dec 16, 2014·8 cites·5 claims
- 1284US10584554B2Two-material PandA plugCONOCOPHILLIPS CO·Filed 2019·Granted Mar 10, 2020·1 cites·6 claims
- 1382US9255446B2Pre-positioned capping device for source control with independent management systemCONOCOPHILLIPS CO·Filed 2014·Granted Feb 9, 2016·5 cites·20 claims
- 1482US8899879B2Structure-supported jackup systemKEPPEL OFFSHORE & MARINE TECHNOLOGY CT PTE LTD·Filed 2013·Granted Dec 2, 2014·6 cites·8 claims
- 1581US12281537B2Helical coil annular access plug and abandonmentCONOCOPHILLIPS CO·Filed 2024·Granted Apr 22, 2025·0 cites·16 claims
- 1681US8967273B2System for detecting, containing and removing hydrocarbon leaks in a subsea environmentCONOCOPHILLIPS CO·Filed 2014·Granted Mar 3, 2015·9 cites·14 claims
- 1780US12129733B2Two-material P and A plugCONOCOPHILLIPS CO·Filed 2022·Granted Oct 29, 2024·0 cites·10 claims
- 1880US12010970B2Nano-thermite well plugCONOCOPHILLIPS CO·Filed 2022·Granted Jun 18, 2024·0 cites·21 claims
- 1980US11486222B2P and A setting with exothermic materialCONOCOPHILLIPS CO·Filed 2020·Granted Nov 1, 2022·1 cites·9 claims
- 2075US11905789B2Helical coil annular access plug and abandonmentCONOCOPHILLIPS CO·Filed 2022·Granted Feb 20, 2024·0 cites·5 claims
- 2174US10760375B2P and A setting with exothermic materialCONOCOPHILLIPS CO·Filed 2018·Granted Sep 1, 2020·1 cites·9 claims
- 2274US8870497B2Ice worthy jack-up drilling unit with conical piled monopodSHAFER RANDALL S·Filed 2011·Granted Oct 28, 2014·4 cites·12 claims
- 2372US8899880B2Structure-assisted jackup systemKEPPEL OFFSHORE & MARINE TECHNOLOGY CT PTE LTD·Filed 2013·Granted Dec 2, 2014·3 cites·10 claims
- 2468US9347270B2Pre-positioned capping device and diverterCONOCOPHILLIPS CO·Filed 2014·Granted May 24, 2016·3 cites·20 claims
- 2568US8851799B2Ice worthy jack-up drilling unit with pre-loading tension systemNOBLE PETER G·Filed 2011·Granted Oct 7, 2014·2 cites·5 claims
- 2667US11480026B2Nano-thermite well plugCONOCOPHILLIPS CO·Filed 2020·Granted Oct 25, 2022·0 cites·6 claims
- 2767US11346176B2Two-matertal, P and A plugCONOCOPHILLIPS CO·Filed 2020·Granted May 31, 2022·0 cites·13 claims
- 2867US11274518B2Helical coil annular access plug and abandonmentCONOCOPHILLIPS CO·Filed 2020·Granted Mar 15, 2022·0 cites·6 claims
- 2966US12152461B2Through tubing P AND A with bismuth alloysCONOCOPHILLIPS CO·Filed 2022·Granted Nov 26, 2024·0 cites·18 claims
- 3063US11441384B2Tool for metal plugging or sealing of casingCONOCOPHILLIPS CO·Filed 2020·Granted Sep 13, 2022·0 cites·17 claims
- 3162US8851176B2Subsea hydrocarbon recoveryNOBLE PETER G·Filed 2012·Granted Oct 7, 2014·2 cites·19 claims
- 3262US8807875B2Ice worthy jack-up drilling unit with conical piled monopod and socketsSHAFER RANDALL S·Filed 2011·Granted Aug 19, 2014·3 cites·14 claims
- 3361US10260288B2Pre-positioned capping device on high pressure wellsCONOCOPHILLIPS CO·Filed 2014·Granted Apr 16, 2019·2 cites·20 claims
- 3460US8801333B2Ice worthy jack-up drilling unit with gas agitation and leg ice shieldsNOBLE PETER G·Filed 2011·Granted Aug 12, 2014·1 cites·10 claims
- 3557US8821071B2Conical piled monopodAURORA RAVI P·Filed 2011·Granted Sep 2, 2014·1 cites·20 claims
- 3654US9121155B2Ice resistant jackup legKEPPEL OFFSHORE & MARINE TECHNOLOGY CT PTE LTD·Filed 2013·Granted Sep 1, 2015·0 cites·10 claims
- 3752US2014205383A1Jack-up drilling unit with tension legsCONOCOPHILLIPS CO·Filed 2014·Application pending·0 cites
- 3848US8956081B2Ice worthy jack-up drilling unit with gas agitated ice preventionNOBLE PETER G·Filed 2011·Granted Feb 17, 2015·0 cites·6 claims
- 3947US2012125690A1Ice worthy jack-up drilling unit with telescoping riserNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4047US2012125688A1Ice worthy jack-up drilling unit secured to the seafloorNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4147US2012128432A1Ice worthy jack-up drilling unit with moon pool for protected drilling in iceNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4246US2012128426A1Ice worthy jack-up drilling unitNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4345US2015129234A1Offshore drilling unit and method of maintaining stability of the drilling unit in potential ice conditionsCONOCOPHILLIPS CO·Filed 2014·Application pending·0 cites
- 4445US2012128428A1Reinforced legs for ice worthy jack-up drilling unitNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4545US2012128427A1Leg ice shields for ice worthy jack-up drilling unitNOBLE PETER G·Filed 2011·Application pending·0 cites
- 4637US8967914B2Riser protection structuresKEPPEL OFFSHORE & MARINE TECHNOLOGY CT PTE LTD·Filed 2013·Granted Mar 3, 2015·0 cites·8 claims
- 4737US2016003011A1Equipment transport assembly for drilling operations and method of transporting equipmentCONOCOPHILLIPS CO·Filed 2015·Application pending·0 cites
- 4835US2015197989A1Underwater drilling rig assembly and method of operating the underwater drilling rig assemblyCONOCOPHILLIPS CO·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Randall S. Shafer files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →