Inventor

JAMES DOUGLAS J

3 patents

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

CANADIAN PATENTS DEV

2 patents

US4316157AFeb 16, 1982

Gas recirculation system for carbon dioxide lasers

CANADIAN PATENTS DEV42 citations85

US4190811AFeb 26, 1980

Laser controlled optical switching in semiconductors

CANADIAN PATENTS DEV24 citations79

LUMONICS INC

1 patent

US5463200AOct 31, 1995

Marking of a workpiece by light energy

LUMONICS INC142 citations92