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Albemarle Corp

Albemarle

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US5166115A	Polyurethanes	Expired / Lapsed	1992-02-03	1992-11-24	2	Details
US5143942A	Polyurethanes	Expired / Lapsed	1991-10-28	1992-09-01	2	Details
US4786656A	Polyhydroxyalkane/aromatic diamine chain extenders	Expired / Lapsed	1988-02-22	1988-11-22	27	Details
US4631298A	Mixed diamine chain extender	Expired / Lapsed	1985-12-16	1986-12-23	37	Details