Halpern; Donald F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Halpern; Donald F..The latest application filed is for "process for the production of polyfluorinated ethers".
- Halpern; Donald F. - Fanwood NJ
- Halpern; Donald F. - New Providence NJ
- Halpern; Donald F. - Whitestone NY
| Patent | Date |
|---|---|
| Process for the production of polyfluorinated ethers Grant 4,874,901 - Halpern , et al. October 17, 1 | 1989-10-17 |
| Process for preparing CHF.sub.2 OCHFCF.sub.3 and CHF.sub.2 OCHClCF.sub.3 and novel intermediate compounds employed therein Grant 4,855,511 - Halpern , et al. August 8, 1 | 1989-08-08 |
| Method and indicator for detecting the loss of integrity of a package Grant 4,098,577 - Halpern * July 4, 1 | 1978-07-04 |
| Integrity indicator Grant 3,899,295 - Halpern August 12, 1 | 1975-08-12 |
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