Inventor

DOE DAVID G

US2 patents

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

HOFFMAN RESOURCES LLC

1 patent

US5742233AApr 21, 1998

Personal security and tracking system

HOFFMAN RESOURCES LLC897 citations95

HOFFMAN RESOURCES INC

1 patent

US6239700B1May 29, 2001

Personal security and tracking system

HOFFMAN RESOURCES INC244 citations94