P

Inventor

JOHNSON DAVID G

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

JOHNSON DAVID G

3 patents
US5314235AMay 24, 1994

Portable back support

JOHNSON DAVID G120 citations95
USD343776SFeb 1, 1994

Sod plugger

JOHNSON DAVID G6 citations71
US4652242AMar 24, 1987

Psychological testing of the visually impaired

JOHNSON DAVID G2 citations60

CATERPILLAR TRACTOR CO

2 patents
US4086824AMay 2, 1978

Split link actuator brake

CATERPILLAR TRACTOR CO16 citations72
US4076329AFeb 28, 1978

Brake modulation valve for pedal-applied brakes

CATERPILLAR TRACTOR CO7 citations72

MINNESOTA MINING & MFG

1 patent
US4063068ADec 13, 1977

Food heating and cooking receptacle

MINNESOTA MINING & MFG64 citations92

FMC CORP

1 patent
US4394742AJul 19, 1983

Engine generated waveform analyzer

FMC CORP41 citations89

SUMMIT CONTAINER CORP

1 patent
US9120593B2Sep 1, 2015

Box with integrated collapsible dividers

SUMMIT CONTAINER CORP10 citations72

WOERMAN DELWIN G

1 patent
US3939916AFeb 24, 1976

Apparatus for cleaning tuberous plants

WOERMAN DELWIN G0 citations19