Inventor

SCHAFFER J THOMAS

US3 patents

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

PLUMMER DESIGN & TECHNOLOGIES

2 patents

US5322571AJun 21, 1994

Method and apparatus for cleaning hoses

PLUMMER DESIGN & TECHNOLOGIES69 citations89

US5287867AFeb 22, 1994

Apparatus and method for insuring and controlling turbulent flow for cleaning ducts

PLUMMER DESIGN & TECHNOLOGIES13 citations68

CHAMPION SPARK PLUG CO

1 patent

US4402030AAug 30, 1983

Electrostatic voltage control circuit

CHAMPION SPARK PLUG CO34 citations89