Welch Allyn Inc
Welch AllyActive Patents
0
Total Holdings
38
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0304380A2 | Borescope or endoscope with fluid dynamic muscle | Expired / Lapsed | 1988-07-26 | — | 11 | Details |
| EP0230751A2 | Biopsy seal | Expired / Lapsed | 1986-12-16 | — | 24 | Details |
| DE2453126A1 | Disposable vaginal speculum with slotted hole coupling - pe… | Expired / Lapsed | 1974-11-08 | — | 0 | Details |
| US7021824B2 | Switch assembly for thermometry apparatus | Expired / Lapsed | 2003-10-20 | 2006-04-04 | 9 | Details |
| US6827488B2 | Sealed probe chamber for thermometry apparatus | Expired / Lapsed | 2003-03-04 | 2004-12-07 | 9 | Details |
| US6393431B1 | Compact imaging instrument system | Expired / Lapsed | 1998-12-28 | 2002-05-21 | 23 | Details |
| USD395609S | Medical thermometer | Expired / Lapsed | 1997-05-14 | 1998-06-30 | 1 | Details |
| US5527261A | Remote hand-held diagnostic instrument with video imaging | Expired / Lapsed | 1994-12-29 | 1996-06-18 | 22 | Details |
| US5222477A | Endoscope or borescope stereo viewing system | Expired / Lapsed | 1991-09-30 | 1993-06-29 | 8 | Details |
| US4539586B1 | US4539586B1 - - Google Patents | Expired / Lapsed | 1983-10-07 | 1991-12-17 | 0 | Details |
| US4934786A | Walking borescope | Expired / Lapsed | 1989-08-07 | 1990-06-19 | 12 | Details |
| US4875468A | Elastomer-ePTFE biopsy channel | Expired / Lapsed | 1988-12-23 | 1989-10-24 | 8 | Details |
| US4836189A | Video hysteroscope | Expired / Lapsed | 1988-07-27 | 1989-06-06 | 16 | Details |
| US4714075A | Biopsy channel for endoscope | Expired / Lapsed | 1986-02-10 | 1987-12-22 | 5 | Details |
| US4706655A | Shield for endoscope elevator cable seal | Expired / Lapsed | 1986-08-26 | 1987-11-17 | 7 | Details |
| US4649904A | Biopsy seal | Expired / Lapsed | 1986-01-02 | 1987-03-17 | 24 | Details |
| US4607621A | Endoscopic apparatus | Expired / Lapsed | 1983-10-07 | 1986-08-26 | 9 | Details |
| US4535758A | Signal level control for video system | Expired / Lapsed | 1983-10-07 | 1985-08-20 | 14 | Details |
| US4491865A | Image sensor assembly | Expired / Lapsed | 1982-09-29 | 1985-01-01 | 11 | Details |
| USRE31289E | Color endoscope with charge coupled device and television v… | Expired / Lapsed | 1981-07-10 | 1983-06-28 | 11 | Details |
| US4261344A | Color endoscope | Expired / Lapsed | 1979-09-24 | 1981-04-14 | 8 | Details |
| US4253447A | Color endoscope with charge coupled device and television v… | Expired / Lapsed | 1978-10-16 | 1981-03-03 | 11 | Details |
| US4147163A | Medical instrument and handle assembly | Expired / Lapsed | 1977-09-06 | 1979-04-03 | 12 | Details |
| US3978850A | Medical diagnostic instruments | Expired / Lapsed | 1975-03-24 | 1976-09-07 | 8 | Details |
| US3812847A | Combination battery handle-case for a pair of attached, out… | Expired / Lapsed | 1972-05-08 | 1974-05-28 | 14 | Details |
| US3698387A | Otoscope construction | Expired / Lapsed | 1969-10-07 | 1972-10-17 | 2 | Details |
| US3598113A | Disposable laryngoscope construction | Expired / Lapsed | 1968-10-09 | 1971-08-10 | 3 | Details |
| US3582637A | Mounting arrangement for a fiber optic reader and lamp asse… | Expired / Lapsed | 1969-01-29 | 1971-06-01 | 4 | Details |
| US3581738A | Disposable illuminating endoscope and method of manufacture | Expired / Lapsed | 1968-11-12 | 1971-06-01 | 8 | Details |
| US3373737A | Light control for diagnostic instruments | Expired / Lapsed | 1965-09-28 | 1968-03-19 | 0 | Details |
| US3299884A | Air cooled lamp handle and diagnostic instrument combination | Expired / Lapsed | 1963-09-16 | 1967-01-24 | 2 | Details |
| US3220888A | Rechargeable battery pack | Expired / Lapsed | 1962-09-20 | 1965-11-30 | 2 | Details |
| US3071747A | Battery handle construction | Expired / Lapsed | 1960-10-13 | 1963-01-01 | 0 | Details |
| US3040738A | Orificial instrument construction | Expired / Lapsed | 1959-08-26 | 1962-06-26 | 0 | Details |
| US2797684A | Disposable speculum cover | Expired / Lapsed | 1955-08-24 | 1957-07-02 | 0 | Details |
| US2790437A | Surgical instrument | Expired / Lapsed | 1955-10-12 | 1957-04-30 | 0 | Details |
| US2646036A | Foldable and separable laryngoscope | Expired / Lapsed | 1950-03-24 | 1953-07-21 | 0 | Details |
| US2637317A | Binocular vision diagnostic instrument | Expired / Lapsed | 1951-04-13 | 1953-05-05 | 0 | Details |