Inventor
ESTKOWSKI MICHAEL H
US18 patents
⚠️ This page may combine multiple inventors who share the name “ESTKOWSKI MICHAEL H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHEPHERD PRODUCTS US
10 patentsUS4892354AJan 9, 1990
Chair seat tilt control
SHEPHERD PRODUCTS US68 citations93
US5415252AMay 16, 1995
Twin wheel caster and brake assembly
SHEPHERD PRODUCTS US29 citations92
US5018787AMay 28, 1991
Chair seat tilt control
SHEPHERD PRODUCTS US34 citations90
US5068943ADec 3, 1991
Dual wheel tilted axle caster with an integral retainer and bearing assembly
SHEPHERD PRODUCTS US36 citations88
US5230571AJul 27, 1993
Caster bearing assembly
SHEPHERD PRODUCTS US20 citations81
US4696394ASep 29, 1987
Easily removable protective covering for annular objects
SHEPHERD PRODUCTS US23 citations81
US5232265AAug 3, 1993
Vertical back adjust for chairs
SHEPHERD PRODUCTS US16 citations73
US5226739AJul 13, 1993
Integral retainer and bearing assembly
SHEPHERD PRODUCTS US15 citations73
US4763383AAug 16, 1988
Electrically conductive caster having loop depending rings
SHEPHERD PRODUCTS US14 citations71
US5276942AJan 11, 1994
Appliance roller
SHEPHERD PRODUCTS US4 citations54