van Riel; Hermanus C. H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for van Riel; Hermanus C. H..The latest application filed is for "process for preparing a pumpable surface-active product based on polyester acetic acid".
- van Riel; Hermanus C. H. - Waddinxveen NL
| Patent | Date |
|---|---|
| Process for preparing a pumpable surface-active product based on polyester acetic acid Grant 4,421,930 - van Paassen , et al. December 20, 1 | 1983-12-20 |
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