Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1023198 | Golf club | Ang-Ju Lee, Christopher G. Engel, Cameron J. Day, Douglas E. Roberts | 2024-04-16 |
| D1017742 | Golf club | Ang-Ju Lee, Christopher G. Engel, Cameron J. Day, Douglas E. Roberts | 2024-03-12 |
| D1003378 | Golf club | Christopher G. Engel, Armando Herrera, Ang-Ju Lee, Douglas E. Roberts | 2023-10-31 |
| D943693 | Golf club | Christopher G. Engel, Armando Herrera, Ang-Ju Lee, Douglas E. Roberts | 2022-02-15 |
| 10213665 | Golf club head with adjustable weight | Cameron J. Day, Andrew Curtis, Bryce W. Hobbs, Douglas E. Roberts | 2019-02-26 |
| D709149 | Iron golf club head | Ryan L. Roach, Cameron J. Day, Oswaldo Gonzalez, Douglas E. Roberts, Karl A. Clausen | 2014-07-15 |
| D709150 | Golf club head | Cameron J. Day, Christopher D. Harvell, Steven M. Mitzel, Oswaldo Gonzalez, Douglas E. Roberts | 2014-07-15 |
| D708685 | Iron golf club head | Christopher D. Harvell, Ryan L. Roach, Cameron J. Day, Douglas E. Roberts, Karl A. Clausen | 2014-07-08 |