P

Inventor

BURKE JOHN A

US9 patents
⚠️ This page may combine multiple inventors who share the name “BURKE JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GREENE TWEED & CO INC

5 patents
US4421330ADec 20, 1983

Antifriction fluid seal assembly

GREENE TWEED & CO INC32 citations91
US4229013AOct 21, 1980

Spring seal

GREENE TWEED & CO INC20 citations78
US4421323ADec 20, 1983

Oil well string member with static seal

GREENE TWEED & CO INC8 citations72
US4342463AAug 3, 1982

Spring seal

GREENE TWEED & CO INC16 citations72
US4352498AOct 5, 1982

Spring seal

GREENE TWEED & CO INC19 citations69

GREENE TWEED INC

2 patents
US5482297AJan 9, 1996

Seal element for installation in an annular dove-tail groove

GREENE TWEED INC63 citations95
US5575484ANov 19, 1996

Fluid pressure activated piston return spring seal

GREENE TWEED INC30 citations91

(unassigned)

2 patents
US5740627AApr 21, 1998

Method and apparatus for enhancing growth characteristics of seeds using ion-electron avalanches

23 citations89
US6023880AFeb 15, 2000

Method and apparatus for enhancing growth characteristics of seeds using ion-electron avalanches

7 citations70