Inventor
ESTKOWSKI CHRISTOPHER G
US13 patents
⚠️ This page may combine multiple inventors who share the name “ESTKOWSKI CHRISTOPHER G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHEPHERD PRODUCTS US
8 patentsUS5068943ADec 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
USD321299SNov 5, 1991
Chair base
SHEPHERD PRODUCTS US16 citations71
USD308815SJun 26, 1990
Caster with arcurate hood cover
SHEPHERD PRODUCTS US8 citations71
US4763383AAug 16, 1988
Electrically conductive caster having loop depending rings
SHEPHERD PRODUCTS US14 citations71