Zavoda; John R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zavoda; John R..The latest application filed is for "self-retaining diaphragm seal".
- Zavoda; John R. - Houston TX
- Zavoda; John R. - Hudson OH
- Zavoda; John R. - Streetsboro OH
| Patent | Date |
|---|---|
| Self-retaining diaphragm seal Grant 4,885,983 - Zavoda December 12, 1 | 1989-12-12 |
| Ultra-sensitive diaphragm with dual stress-relief structures Grant 4,375,182 - Zavoda March 1, 1 | 1983-03-01 |
| Self-retaining Diaphragm Seal For Recording Instrument Grant 3,645,139 - Zavoda February 29, 1 | 1972-02-29 |
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