Wallbaum; Knuth
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wallbaum; Knuth.The latest application filed is for "passenger conveyor handrail having a gripping surface with a generally circular cross-section".
- Wallbaum; Knuth - Bochum DE
- Wallbaum; Knuth - Wunstorf DE
| Patent | Date |
|---|---|
| Passenger conveyor handrail having a gripping surface with a generally circular cross-section Grant 7,614,490 - Milton-Benoit , et al. November 10, 2 | 2009-11-10 |
| Passenger Conveyor Handrail Having a Gripping Surface with a Generally Circular Cross-Section App 20080202890 - Milton-Benoit; John M. ; et al. | 2008-08-28 |
| Newel guide for a handrail Grant 5,634,546 - Ostermeier , et al. June 3, 1 | 1997-06-03 |
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