Reiff; Helmut F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Reiff; Helmut F..The latest application filed is for "liquid diphenylmethane diisocyanate compositions".
- Reiff; Helmut F. - Leverkusen DE
- Reiff; Helmut F. - New Martinsville WV
| Patent | Date |
|---|---|
| Liquid diphenylmethane diisocyanate compositions Grant 4,490,301 - Pantone , et al. December 25, 1 | 1984-12-25 |
| Low-temperature storage stable liquid diphenylmethane diisocyanates Grant 4,118,411 - Reiff , et al. October 3, 1 | 1978-10-03 |
| Low-temperature storage stable liquid diphenylmethane diisocyanates Grant 4,115,429 - Reiff , et al. September 19, 1 | 1978-09-19 |
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