P

Inventor

LUDWIG JAMES E

US7 patents
⚠️ This page may combine multiple inventors who share the name “LUDWIG JAMES E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HALL DAVID L

4 patents
US8015873B2Sep 13, 2011

Detector housing

HALL DAVID L7 citations82
US8266974B2Sep 18, 2012

Process for testing a detector mounted within a duct

HALL DAVID L4 citations61
US8141422B2Mar 27, 2012

Detector housing

HALL DAVID L4 citations61
US8424394B2Apr 23, 2013

Air sampling tube

HALL DAVID L1 citations51

LUDWIG JAMES E

2 patents
US5009215AApr 23, 1991

Arrow rest and holder apparatus

LUDWIG JAMES E35 citations88
US4038960AAug 2, 1977

Arrow holder

LUDWIG JAMES E23 citations78

AIR PRODUCTS AND CONTROLS INC

1 patent
US7204522B2Apr 17, 2007

Duct detector housing

AIR PRODUCTS AND CONTROLS INC3 citations59