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United States Department of Health and Human Services

United Sta
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Total Holdings
15

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4604094A Toposcopic catheter and method of fabrication Expired / Lapsed 1984-09-06 1986-08-05 43 Details
US4437857A Method and apparatus for traversing blood vessels Expired / Lapsed 1979-03-19 1984-03-20 3 Details
US4403985A Jet controlled catheter Expired / Lapsed 1981-05-12 1983-09-13 19 Details
US4254774A Balloon catheter and technique for the manufacture thereof Expired / Lapsed 1979-02-14 1981-03-10 7 Details
US4222126A Unitized three leaflet heart valve Expired / Lapsed 1978-12-14 1980-09-16 6 Details
US4084266A Artificial implant with fiber-flocked blood-contacting surf… Expired / Lapsed 1976-11-01 1978-04-18 3 Details
US4056854A Aortic heart valve catheter Expired / Lapsed 1976-09-28 1977-11-08 9 Details
US3911502A Composite heart valve poppet Expired / Lapsed 1974-08-23 1975-10-14 2 Details
US3883393A Cell culture on semi-permeable tubular membranes Expired / Lapsed 1974-02-11 1975-05-13 6 Details
US3699389A Patient electrode isolation Expired / Lapsed 1970-11-19 1972-10-17 2 Details
US3572319A Intraocular pressure control system Expired / Lapsed 1969-05-23 1971-03-23 0 Details
US3572325A Flexible endoscope having fluid conduits and control Expired / Lapsed 1968-10-25 1971-03-23 0 Details
US3553736A Auxiliary ventricle Expired / Lapsed 1968-11-25 1971-01-12 0 Details
US3512183A Bioelectric polyurethane and use of same in internal prosth… Expired / Lapsed 1967-06-08 1970-05-19 0 Details
US3490523A Transfer device Expired / Lapsed 1968-04-08 1970-01-20 0 Details