Inventor · disambiguated record
Christopher M. Biggerstaff
Also filed as: BIGGERSTAFF CHRISTOPHER · BIGGERSTAFF CHRISTOPHER M
11 granted patents·7 pending applications·7 citations·filing 2018–2023
82Inventor score
Files withBlack Diamond Oilfield Rentals LLC18
Top patents by PatentIndex Score
18 records- 0188US11566730B2Drill pipeBlack Diamond Oilfield Rentals LLC·Filed 2019·Granted Jan 31, 2023·5 cites·65 claims
- 0273US11624247B2Elevator grip lifting and rotary slip holding system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Granted Apr 11, 2023·1 cites·57 claims
- 0371US11028656B2Drilling mud screen system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2018·Granted Jun 8, 2021·1 cites·71 claims
- 0466US12379052B2Drill pipeBlack Diamond Oilfield Rentals LLC·Filed 2022·Granted Aug 5, 2025·0 cites·46 claims
- 0565US11585168B2Drilling mud screen system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2021·Granted Feb 21, 2023·0 cites·14 claims
- 0664US12163388B2Drilling mud screen system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Granted Dec 10, 2024·0 cites·25 claims
- 0762US2023095156A1Elevator grip lifting and rotary slip holding systemBlack Diamond Oilfield Rentals LLC·Filed 2022·Application pending·0 cites
- 0851US12000214B2Drill pipe and optimization thereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Granted Jun 4, 2024·0 cites·10 claims
- 0949US12320205B2Drill pipe and optimization thereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Granted Jun 3, 2025·0 cites·27 claims
- 1045US11156042B2Piston-style drilling mud screen system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2019·Granted Oct 26, 2021·0 cites·81 claims
- 1143US12071821B1Loss prevention screenBlack Diamond Oilfield Rentals LLC·Filed 2023·Granted Aug 27, 2024·0 cites·7 claims
- 1242US11021917B2Piston-style drilling mud screen system and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2018·Granted Jun 1, 2021·0 cites·77 claims
- 1340US2019071934A1Rotary shoulder connections for threaded pipe connectionsBlack Diamond Oilfield Rentals LLC·Filed 2018·Application pending·0 cites
- 1439US2022055873A1Rotating lifting bail and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2021·Application pending·0 cites
- 1539US2024117691A1Circulation subBlack Diamond Oilfield Rentals LLC·Filed 2022·Application pending·0 cites
- 1637US2021140252A1Multi-Screen Drilling Mud and Completion Fluids Screen System and Methods ThereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Application pending·0 cites
- 1737US2019072215A1Rotary shoulder connections for threaded pipe connectionsBlack Diamond Oilfield Rentals LLC·Filed 2018·Application pending·0 cites
- 1837US2021062621A1Drilling mud screen apparatus and methods thereofBlack Diamond Oilfield Rentals LLC·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →