P

Inventor

KEEN STEPHEN

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

MERCK SHARP & DOHME

9 patents

SURNA INC

6 patents

GSI GROUP LTD

1 patent

SPI LASERS UK LTD

1 patent

LI CHENG

1 patent

KEEN STEPHEN

1 patent