Inventor

BARRETT ROBERT E

US5 patents

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

(unassigned)

2 patents

US5395118AMar 7, 1995

Crossword game board apparatus

31 citations88

US6273644B1Aug 14, 2001

High pressure live service pipe renewal apparatus and method

1 citations39

NORTHERN ILLINOIS GAS

1 patent

US5321233AJun 14, 1994

Electrofusion fitting and sealing method for distribution line

NORTHERN ILLINOIS GAS11 citations71

NORTHERN ILLINOIS GAS CO

1 patent

US5460071AOct 24, 1995

Power driven casing splitter apparatus

NORTHERN ILLINOIS GAS CO14 citations65

POST OFFICE

1 patent

US4430733AFeb 7, 1984

Switching of digital signals

POST OFFICE13 citations65