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Angiotech Biomaterials Corp

Angiotech

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US4776890A	Preparation of collagen hydroxyapatite matrix for bone repa…	Expired / Lapsed	1987-04-03	1988-10-11	11	Details
US4725671A	Collagen membranes for medical use	Expired / Lapsed	1986-02-04	1988-02-16	23	Details
US4655980A	Process of making collagen membranes for medical use	Expired / Lapsed	1986-03-13	1987-04-07	10	Details
US4424208A	Collagen implant material and method for augmenting soft ti…	Expired / Lapsed	1982-01-11	1984-01-03	8	Details
US4233360A	Non-antigenic collagen and articles of manufacture	Expired / Lapsed	1978-09-25	1980-11-11	6	Details