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Philips Laboratories Inc

Philips La
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2588292A Electron switching tubes and circuits therefor Expired / Lapsed 1950-04-20 1952-03-04 0 Details
US2558495A Regulation of the amount of air in the cycle of an external… Expired / Lapsed 1948-01-21 1951-06-26 0 Details
US2557186A Electronic trigger circuit pulse scaling system Expired / Lapsed 1949-02-19 1951-06-19 0 Details
US2547173A Long wave length infrared radiation detector Expired / Lapsed 1950-03-09 1951-04-03 0 Details
US2547212A Apparatus for determining the composition of a substance Expired / Lapsed 1948-01-17 1951-04-03 2 Details
US2465105A Oxide insulating coating for nickel chromium resistance wire Expired / Lapsed 1946-04-12 1949-03-22 0 Details