Inventor · disambiguated record
Harry L. Spears
Also filed as: SPEARS HARRY L
8 granted patents·239 citations·filing 1979–2000
89Inventor score
Top patents by PatentIndex Score
8 records- 0186US6283148B1Standing valve with a curved finFLOWMORE SYSTEMS INC·Filed 2000·Granted Sep 4, 2001·66 cites·8 claims
- 0281US4599054ATravelling valve assembly for a fluid pumpSPEARS HARRY L·Filed 1984·Granted Jul 8, 1986·35 cites·19 claims
- 0378US4332533AFluid pumpWATSON INT RESOURCES·Filed 1979·Granted Jun 1, 1982·34 cites·4 claims
- 0477US4848454ADownhole tool for use with a ball and seat traveling valve for a fluid pumpSPEARS HARRY L·Filed 1987·Granted Jul 18, 1989·34 cites·7 claims
- 0570US5382142AWall pump having backwash valve actuatorSPEARS SPECIALITY OIL TOOLS IN·Filed 1993·Granted Jan 17, 1995·34 cites·21 claims
- 0654US4504199AFluid pumpSPEARS HARRY L·Filed 1983·Granted Mar 12, 1985·13 cites·51 claims
- 0750US4531896AFluid pumpSPEARS HARRY L·Filed 1984·Granted Jul 30, 1985·11 cites·23 claims
- 0836US5086802ASafety check valveSPEARS HARRY L·Filed 1990·Granted Feb 11, 1992·12 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →