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Welch Allyn Inc

Welch Ally

Active Patents

0

Total Holdings

17

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
DE2453126A1	Disposable vaginal speculum with slotted hole coupling - pe…	Expired / Lapsed	1974-11-08	—	0	Details
US4934786A	Walking borescope	Expired / Lapsed	1989-08-07	1990-06-19	12	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
US4607621A	Endoscopic apparatus	Expired / Lapsed	1983-10-07	1986-08-26	9	Details
US4491865A	Image sensor assembly	Expired / Lapsed	1982-09-29	1985-01-01	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
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
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
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
US2637317A	Binocular vision diagnostic instrument	Expired / Lapsed	1951-04-13	1953-05-05	0	Details