Chang; Robert W. H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Robert W. H..The latest application filed is for "lubricating and moisturizing shaving preparations".
- Chang; Robert W. H. - Roseville MN
- Chang; Robert W. H. - Shoreview MN
- Chang; Robert W. H. - Saint Paul MN
| Patent | Date |
|---|---|
| Lubricating and moisturizing shaving preparations Grant 5,294,438 - Chang , et al. March 15, 1 | 1994-03-15 |
| Encapsulated cosmetic materials and process of making Grant 5,013,473 - Norbury , et al. May 7, 1 | 1991-05-07 |
| Encapsulated cosmetic materials and process of making Grant 4,976,961 - Norbury , et al. December 11, 1 | 1990-12-11 |
| Lipstick sampling device Grant 4,876,136 - Chang , et al. October 24, 1 | 1989-10-24 |
| Cleansing pad Grant 4,769,022 - Chang , et al. September 6, 1 | 1988-09-06 |
| Cover film on lipstick sampler Grant 4,755,433 - Patel , et al. July 5, 1 | 1988-07-05 |
| Compositions and method for reducing elution of therapeutic agents from teeth Grant 4,510,127 - Chang April 9, 1 | 1985-04-09 |
| Compositions for reducing elution of therapeutic agents from teeth Grant RE31,787 - Chang January 1, 1 | 1985-01-01 |
| Composition and method for reducing elution of therapeutic agents from teeth Grant 4,485,090 - Chang November 27, 1 | 1984-11-27 |
| Instant hot or cold, reusable cold pack Grant 4,462,224 - Dunshee , et al. July 31, 1 | 1984-07-31 |
| Compositions for reducing elution of therapeutic agents from teeth Grant 4,304,766 - Chang December 8, 1 | 1981-12-08 |
| Composition and method for inhibiting plaque formation Grant 4,170,636 - Engel , et al. October 9, 1 | 1979-10-09 |
| Non-greasy compositions Grant 4,164,563 - Chang August 14, 1 | 1979-08-14 |
| Non-leachable U.v. Absorber And Dental Restorative Material Grant 3,819,568 - Taylor , et al. June 25, 1 | 1974-06-25 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 