Newkirk; John B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Newkirk; John B..The latest application filed is for "ultra-sharp tungsten needle for electrosurgical knife".
- Newkirk; John B. - Evergreen CO
- Newkirk; John B. - Englewood CO
| Patent | Date |
|---|---|
| Ultra-sharp tungsten needle for electrosurgical knife Grant 4,927,420 - Newkirk , et al. May 22, 1 | 1990-05-22 |
| Body fluid transfer device Grant 4,850,955 - Newkirk July 25, 1 | 1989-07-25 |
| Antenatal shunt Grant 4,474,569 - Newkirk October 2, 1 | 1984-10-02 |
| Peritoneo-venous shunt Grant 4,240,434 - Newkirk December 23, 1 | 1980-12-23 |
| Biological drainage shunt Grant 4,175,563 - Arenberg , et al. November 27, 1 | 1979-11-27 |
| Artifical biological drainage device Grant 4,037,604 - Newkirk July 26, 1 | 1977-07-26 |
| Surgical Drain For Shunting Fluid Grant 3,654,932 - Newkirk , et al. April 11, 1 | 1972-04-11 |
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