Scherm; Hans P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Scherm; Hans P..The latest application filed is for "process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a positive chargeable controlling agent for toners".
- Scherm; Hans P. - Kempten DE
| Patent | Date |
|---|---|
| Process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a positive chargeable controlling agent for toners Grant 4,902,570 - Heinemann , et al. February 20, 1 | 1990-02-20 |
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