Hansen; Ralph H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hansen; Ralph H..The latest application filed is for "thiodipropionoyl bis(halo 5-norbornene 2,3-dicarboxylic acid hydrazide) additives for polymers".
- Hansen; Ralph H. - Lincoln MA
- Hansen; Ralph H. - Short Hills NJ
| Patent | Date |
|---|---|
| Thiodipropionoyl bis(halo 5-norbornene 2,3-dicarboxylic acid hydrazide) additives for polymers Grant 4,465,571 - Hansen August 14, 1 | 1984-08-14 |
| Thiodipropionoyl bis (halo benzhydrazide) additives for polymers Grant 4,464,240 - Hansen August 7, 1 | 1984-08-07 |
| Temperature Adaptable Fabrics Grant 3,857,753 - Hansen December 31, 1 | 1974-12-31 |
| Method And Apparatus For Obtaining Energy From Temperature Changes Grant 3,823,560 - Hansen July 16, 1 | 1974-07-16 |
| Temperature Adaptable Fabrics Grant 3,607,591 - Hansen September 21, 1 | 1971-09-21 |
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