Lobach; Wilfried
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lobach; Wilfried.The latest application filed is for "polyquaternary ammonium compounds, their preparation, their use in the production of paper and paper treatment agents containing them".
- Lobach; Wilfried - Bonn DE
- Lobach; Wilfried - N/A DE
| Patent | Date |
|---|---|
| Polyquaternary ammonium compounds, their preparation, their use in the production of paper and paper treatment agents containing them Grant 4,423,194 - Lobach , et al. December 27, 1 | 1983-12-27 |
| Polyamines containing urea groups prepared from lactam or aminocarboxylic acid Grant 4,384,110 - Lobach , et al. May 17, 1 | 1983-05-17 |
| Polyamines containing amide groups Grant 4,319,019 - Lehmann , et al. March 9, 1 | 1982-03-09 |
| Aqueous reaction of polyamine with alkylene dihalide in presence of emulsifier Grant 4,254,255 - Lobach , et al. March 3, 1 | 1981-03-03 |
| Polyamines containing amide groups Grant 4,250,299 - Lehmann , et al. February 10, 1 | 1981-02-10 |
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