Inventor

SORENSON JOHN E

US5 patents

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

GRACE W R & CO

2 patents

US5224774AJul 6, 1993

Concrete additive product and method of use

GRACE W R & CO57 citations91

US5203629AApr 20, 1993

Method for modifying concrete properties

GRACE W R & CO77 citations91

ARMSTRONG INT INC

2 patents

US4468962ASep 4, 1984

Energy loss detection system

ARMSTRONG INT INC14 citations69

US4456173AJun 26, 1984

Energy loss detection system

ARMSTRONG INT INC8 citations69

ARMSTRONG MACHINE WORKS

1 patent

US4305548ADec 15, 1981

Energy loss detection system

ARMSTRONG MACHINE WORKS20 citations77