Lange; Roger W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lange; Roger W..The latest application filed is for "durable retroreflective elements".
- Lange; Roger W. - Maplewood MN
- Lange; Roger W. - St. Paul MN
| Patent | Date |
|---|---|
| Durable retroreflective elements Grant 5,917,652 - Mathers , et al. June 29, 1 | 1999-06-29 |
| Durable retroreflective elements Grant 5,774,265 - Mathers , et al. June 30, 1 | 1998-06-30 |
| Thermal extractive gelation process Grant 4,931,414 - Wood , et al. June 5, 1 | 1990-06-05 |
| Silica coating Grant 4,816,333 - Lange , et al. March 28, 1 | 1989-03-28 |
| Transparent non-vitreous zirconia microspheres Grant 4,772,511 - Wood , et al. September 20, 1 | 1988-09-20 |
| Pavement markings containing transparent non-vitreous ceramic microspheres Grant 4,758,469 - Lange * July 19, 1 | 1988-07-19 |
| Transparent non-vitreous ceramic particulate Grant 4,564,556 - Lange January 14, 1 | 1986-01-14 |
| Primed inorganic substrates overcoated with curable protective compositions Grant 4,396,650 - Lange , et al. August 2, 1 | 1983-08-02 |
| Primed inorganic substrates overcoated with curable protective compositions Grant 4,356,233 - Lange , et al. October 26, 1 | 1982-10-26 |
| Shaped and fired articles of TiO.sub.2 Grant 4,166,147 - Lange , et al. August 28, 1 | 1979-08-28 |
| Thin layer chromatographic plates Grant 4,138,336 - Mendel , et al. February 6, 1 | 1979-02-06 |
| Ultraviolet absorbing coatings Grant 4,089,996 - Lange , et al. May 16, 1 | 1978-05-16 |
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