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Engelhard Hanovia Inc

Engelhard

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3156408A	Rotor element for line flow fan	Expired / Lapsed	1963-06-18	1964-11-10	2	Details
US3137804A	Explosion-proof lamp	Expired / Lapsed	1960-09-30	1964-06-16	2	Details
US3067327A	Measuring device	Expired / Lapsed	1957-06-21	1962-12-04	2	Details
US2982859A	Light communication alinement system	Expired / Lapsed	1959-02-04	1961-05-02	0	Details