Inventor

MACDONALD JOHN A

US5 patents

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

RAILTECH LTD

3 patents

US5566938AOct 22, 1996

GEN ELECTRIC

1 patent

US5229727AJul 20, 1993

Hermetically sealed microstrip to microstrip transition for printed circuit fabrication

GEN ELECTRIC25 citations90

LANG LESLIE L

1 patent

US8425783B2Apr 23, 2013

System and method that removes contaminants from sulfur

LANG LESLIE L0 citations43

MACDONALD JOHN A

RAILTECH LTD

Artificial curling rink

Gear housing

Plug door assembly

GEN ELECTRIC

Hermetically sealed microstrip to microstrip transition for printed circuit fabrication

LANG LESLIE L

System and method that removes contaminants from sulfur