Inventor · disambiguated record
Michael H. Estkowski
Also filed as: ESTKOWSKI MICHAEL H
18 granted patents·390 citations·filing 1976–1994
95Inventor score
Files withSHEPHERD PRODUCTS US10ESTKOWSKI MICHAEL H3CLARK EQUIPMENT CO2MECHANICAL PRODUCTS INC1SHEPPERD PRODUCTS U S INC1
Top patents by PatentIndex Score
18 records- 0191US4339154AVehicle brake systemCLARK EQUIPMENT CO·Filed 1980·Granted Jul 13, 1982·32 cites·10 claims
- 0283US4892354AChair seat tilt controlSHEPHERD PRODUCTS US·Filed 1989·Granted Jan 9, 1990·68 cites·6 claims
- 0375US5068943ADual wheel tilted axle caster with an integral retainer and bearing assemblySHEPHERD PRODUCTS US·Filed 1990·Granted Dec 3, 1991·36 cites·6 claims
- 0472US4696394AEasily removable protective covering for annular objectsSHEPHERD PRODUCTS US·Filed 1986·Granted Sep 29, 1987·23 cites·2 claims
- 0571US5415252ATwin wheel caster and brake assemblySHEPHERD PRODUCTS US·Filed 1994·Granted May 16, 1995·29 cites·7 claims
- 0664US4353183ASeed marker tabsESTKOWSKI MICHAEL H·Filed 1980·Granted Oct 12, 1982·26 cites·7 claims
- 0763US5018787AChair seat tilt controlSHEPHERD PRODUCTS US·Filed 1990·Granted May 28, 1991·34 cites·6 claims
- 0861US5230571ACaster bearing assemblySHEPHERD PRODUCTS US·Filed 1992·Granted Jul 27, 1993·20 cites·7 claims
- 0961US4718726AChair seat tilt controlESTKOWSKI MICHAEL H·Filed 1987·Granted Jan 12, 1988·30 cites·7 claims
- 1056US4144862AEngine starting systemCLARK EQUIPMENT CO·Filed 1977·Granted Mar 20, 1979·13 cites·2 claims
- 1153US5226739AIntegral retainer and bearing assemblySHEPHERD PRODUCTS US·Filed 1991·Granted Jul 13, 1993·15 cites·3 claims
- 1250US5075924ATilted axle multiple wheel casterSHEPPERD PRODUCTS U S INC·Filed 1990·Granted Dec 31, 1991·18 cites·9 claims
- 1348US4763383AElectrically conductive caster having loop depending ringsSHEPHERD PRODUCTS US·Filed 1987·Granted Aug 16, 1988·14 cites·2 claims
- 1445US5232265AVertical back adjust for chairsSHEPHERD PRODUCTS US·Filed 1992·Granted Aug 3, 1993·16 cites·9 claims
- 1537US4166226ANo-back synchronous motor driveVM CORP·Filed 1976·Granted Aug 28, 1979·6 cites·6 claims
- 1636US4453369AMethod of producing seed marker tabsESTKOWSKI MICHAEL H·Filed 1982·Granted Jun 12, 1984·5 cites·9 claims
- 1726US4688512ABacklighted trip indicatorMECHANICAL PRODUCTS INC·Filed 1986·Granted Aug 25, 1987·1 cites·1 claims
- 1823US5276942AAppliance rollerSHEPHERD PRODUCTS US·Filed 1992·Granted Jan 11, 1994·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →