Inventor

WITT FRANK

US6 patents

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

SEMANCHIK STEPHEN

1 patent

US4164284AAug 14, 1979

Liquid container novelty

SEMANCHIK STEPHEN164 citations93

INSTR FLIGHT RESEARCH

1 patent

US4462661AJul 31, 1984

Laser protection goggles

INSTR FLIGHT RESEARCH63 citations91

INSTR FLIGHT RESEARCH INC

1 patent

US4482326ANov 13, 1984

Flight training glasses

INSTR FLIGHT RESEARCH INC34 citations89

WITT FRANK

1 patent

US4021935AMay 10, 1977

Flight training hood

WITT FRANK26 citations77

HEROLD HENDRIK

1 patent

US8813716B2Aug 26, 2014

Pre-combustion chamber tip

HEROLD HENDRIK7 citations72

CATERPILLAR MOTOREN GMBH & CO

1 patent

US11181070B2Nov 23, 2021

Cylinder block of internal combustion engine

CATERPILLAR MOTOREN GMBH & CO1 citations50