P

Inventor

RUHL ROBERT C

US19 patents
⚠️ This page may combine multiple inventors who share the name “RUHL ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TECHNOLOGY MAN INC

7 patents

STANDARD OIL CO OHIO

4 patents

KENNECOTT CORP

3 patents

CARBORUNDUM CO

2 patents

STANDARD OIL CO

1 patent

KENNECOTT COPPER CORP

1 patent

CHASE BRASS & COPPER CO

1 patent