← Back to Companies

Hansa Medical Products Inc

Hansa Medi

Active Patents

0

Total Holdings

4

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US5957978A	Valved fenestrated tracheotomy tube	Expired / Lapsed	1997-12-22	1999-09-28	9	Details
US4911716A	Surgical implant for a voice prosthesis	Expired / Lapsed	1989-04-12	1990-03-27	12	Details
US4614516A	Voice prosthesis device	Expired / Lapsed	1984-01-20	1986-09-30	19	Details
US4435853A	Voice prosthesis device and placement tool therefor	Expired / Lapsed	1982-04-30	1984-03-13	10	Details