Patent Explorer

Browse, filter, and analyze 50 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
GB1447174A Membrane diffusion devices Bayer Corp Expired / Lapsed 1974-04-23 — 1994-04-23 0.0 yrs 0
US4187558A Prosthetic ligament Bayer Corp Expired / Lapsed 1977-10-25 1980-02-12 1997-10-25 0.0 yrs 12
US3991767A Tubular unit with vessel engaging cuff structure Bayer Corp Expired / Lapsed 1975-03-06 1976-11-16 1995-03-06 0.0 yrs 15
US3886600A Joint prosthesis Bayer Corp Expired / Lapsed 1973-09-26 1975-06-03 1993-09-26 0.0 yrs 44
US3879767A Prosthesis for articulating body structures Bayer Corp Expired / Lapsed 1974-02-11 1975-04-29 1994-02-11 0.0 yrs 23
US3867728A Prosthesis for spinal repair Bayer Corp Expired / Lapsed 1973-04-05 1975-02-25 1993-04-05 0.0 yrs 56
US3834544A Membrane diffusion apparatus Bayer Corp Expired / Lapsed 1971-07-06 1974-09-10 1991-07-06 0.0 yrs 52
US3805300A Tendon prosthesis Bayer Corp Expired / Lapsed 1972-07-28 1974-04-23 1992-07-28 0.0 yrs 38
US3766567A Artificial heart assembly and heart assist device Bayer Corp Expired / Lapsed 1971-08-20 1973-10-23 1991-08-20 0.0 yrs 65
US3745590A Articulating prosthesis with ligamentous attachment Bayer Corp Expired / Lapsed 1971-06-25 1973-07-17 1991-06-25 0.0 yrs 18
US3739402A Bicuspid fascia lata valve Bayer Corp Expired / Lapsed 1970-10-15 1973-06-19 1990-10-15 0.0 yrs 15
US3714671A Tissue-type heart valve with a graft support ring or stent Bayer Corp Expired / Lapsed 1970-11-30 1973-02-06 1990-11-30 0.0 yrs 29
US3710744A Method and device for manufacture of heart valve Bayer Corp Expired / Lapsed 1971-02-24 1973-01-16 1991-02-24 0.0 yrs 19
US3681577A Automatic calibration apparatus Bayer Corp Expired / Lapsed 1970-10-30 1972-08-01 1990-10-30 0.0 yrs 14
US3633585A Catheter Bayer Corp Expired / Lapsed 1969-04-17 1972-01-11 1989-04-17 0.0 yrs 12
US3634868A New and improved method and apparatus for automatic baseline and standard calibration of automatic, multichannel sequentially operable fluid sample supply, treatment and analysis means Bayer Corp Expired / Lapsed 1970-03-13 1972-01-11 1990-03-13 0.0 yrs 31
US3625211A Failsafe apparatus for administering a parenteral solution Bayer Corp Expired / Lapsed 1969-06-06 1971-12-07 1989-06-06 0.0 yrs 7
US3593342A Prosthetic joint Bayer Corp Expired / Lapsed 1969-01-27 1971-07-20 1989-01-27 0.0 yrs 21
US3548418A Graft valve transplantation for human hearts and graft-support ring therefor Bayer Corp Expired / Lapsed 1968-05-03 1970-12-22 1988-05-03 0.0 yrs 0
US3415361A Test device and container therefor Bayer Corp Expired / Lapsed 1966-12-22 1968-12-10 1986-12-22 0.0 yrs 0
Showing 1 to 20 of 50 patents
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