Inventor · disambiguated record
Morris S. Biffle
Also filed as: BIFFLE MORRIS S
9 granted patents·815 citations·filing 1974–1986
93Inventor score
Top patents by PatentIndex Score
9 records- 0196US3934887ARotary drilling head assemblyDRESSER IND·Filed 1975·Granted Jan 27, 1976·77 cites·15 claims
- 0292US4208056ARotating blowout preventor with index kelly drive bushing and stripper rubberBIFFLE MORRIS S·Filed 1979·Granted Jun 17, 1980·97 cites·18 claims
- 0392US3965987AMethod of sealing the annulus between a toolstring and casing headDRESSER IND·Filed 1974·Granted Jun 29, 1976·98 cites·10 claims
- 0491US4441551AModified rotating head assembly for rotating blowout preventorsBIFFLE MORRIS S·Filed 1981·Granted Apr 10, 1984·110 cites·17 claims
- 0591US4154448ARotating blowout preventor with rigid washpipeBIFFLE MORRIS S·Filed 1977·Granted May 15, 1979·87 cites·17 claims
- 0689US4783084AHead for a rotating blowout preventorBIFFLE MORRIS S·Filed 1986·Granted Nov 8, 1988·99 cites·12 claims
- 0788US4500094AHigh pressure rotary stripperBIFFLE MORRIS S·Filed 1982·Granted Feb 19, 1985·87 cites·18 claims
- 0887US4529210ADrilling media injection for rotating blowout preventorsBIFFLE MORRIS S·Filed 1983·Granted Jul 16, 1985·79 cites·12 claims
- 0987US4367795ARotating blowout preventor with improved seal assemblyBIFFLE MORRIS S·Filed 1980·Granted Jan 11, 1983·81 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →