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Factory Mutual Research Corp
Factory Mu
Active Patents
0
Total Holdings
5
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US3918935A
Non-newtonian liquid and method for wet scrubbing stack gas…
Expired / Lapsed
1973-08-13
1975-11-11
9
Details
US3871457A
Fluid control device and a fire protection system incorpora…
Expired / Lapsed
1974-03-04
1975-03-18
6
Details
US3858618A
Piping for fire protection systems
Expired / Lapsed
1973-01-10
1975-01-07
5
Details
US2768069A
Combustible gas detector
Expired / Lapsed
1952-06-05
1956-10-23
0
Details
US2583930A
Gas analyzer and smoke detector
Expired / Lapsed
1948-12-04
1952-01-29
1
Details