Haenggi; Robert A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Haenggi; Robert A..The latest application filed is for "retroreflective article".
- Haenggi; Robert A. - Woodbury MN
- Haenggi; Robert A. - St. Paul MN
| Patent | Date |
|---|---|
| Retroreflective article Grant 6,451,408 - Haunschild , et al. September 17, 2 | 2002-09-17 |
| Retroreflective Article App 20020090492 - HAUNSCHILD, DALE H. ; et al. | 2002-07-11 |
| Process for making conformable thermoplastic marking sheet Grant 5,194,113 - Lasch , et al. March 16, 1 | 1993-03-16 |
| Skid-resistant surface marking material Grant 5,124,178 - Haenggi , et al. * June 23, 1 | 1992-06-23 |
| Skid-resistant surface marking material Grant 5,094,902 - Haenggi , et al. * March 10, 1 | 1992-03-10 |
| Skid-resistant pavement markings Grant 5,053,253 - Haenggi , et al. October 1, 1 | 1991-10-01 |
| Skid-resistant pavement markings Grant 4,937,127 - Haenggi , et al. June 26, 1 | 1990-06-26 |
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