Shonfeld; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shonfeld; David.The latest application filed is for "single-use syringe with aspirating mechanism".
- Shonfeld; David - Great Neck NY
| Patent | Date |
|---|---|
| Single-use syringe with aspirating mechanism Grant 6,283,941 - Schoenfeld , et al. September 4, 2 | 2001-09-04 |
| Hypodermic syringe having retractable needle Grant 5,891,104 - Shonfeld , et al. April 6, 1 | 1999-04-06 |
| Single-use syringe assembly including spring clip lock and plunger Grant 5,562,623 - Shonfeld , et al. October 8, 1 | 1996-10-08 |
| Single use syringe assembly Grant 5,531,691 - Shonfeld , et al. July 2, 1 | 1996-07-02 |
| Single use hypodermic syringe Grant 5,370,620 - Shonfeld December 6, 1 | 1994-12-06 |
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