Inventor

KOCH JOHN A

US2 patents

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

(unassigned)

1 patent

US5540625AJul 30, 1996

Pneumatically enhanced golf clubs

33 citations78

UNITED STATES GYPSUM CO

1 patent

US11029139B2Jun 8, 2021

Wallboard score, snap and edge appearance test procedure

UNITED STATES GYPSUM CO0 citations54