Inventor

CRABTREE JOHN D

US5 patents

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

ROCKWELL TECH LLC

1 patent

US6154683ANov 28, 2000

Low voltage industrial control system providing intrinsically safe operation

ROCKWELL TECH LLC53 citations94

T & N MATERIALS RES LTD

1 patent

US4529653AJul 16, 1985

Flexible, asbestos-free gasket material

T & N MATERIALS RES LTD65 citations94

CRABTREE JOHN D

1 patent

US8339804B2Dec 25, 2012

Programmable routing module

CRABTREE JOHN D8 citations75

ROCKWELL AUTOMATION TECH INC

1 patent

US7800919B2Sep 21, 2010

Programmable routing module

ROCKWELL AUTOMATION TECH INC5 citations71

NUARC CO

1 patent

US4300075ANov 10, 1981

AC Regulator system for quartz iodine lamps

NUARC CO16 citations65