Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6966843 | Golf club fitting system and method | David Rankin | 2005-11-22 |
| 6179720 | Correlation method and apparatus for target-oriented sports activities | David Rankin | 2001-01-30 |
| 6176789 | Scoring method and apparatus | David Rankin | 2001-01-23 |
| 5489099 | Apparatus and method for tracking the flight of a golf ball | David Rankin, Edgar P. Roberts, Jr. | 1996-02-06 |
| 5398936 | Golfing apparatus and method for golf play simulation | Edgar P. Roberts, Jr., Charles L. Crockett | 1995-03-21 |
| 5393064 | Apparatus and method for determining projectile impact locations | Bryce P. Beard, III, Edgar P. Roberts, Jr. | 1995-02-28 |
| 5342051 | Apparatus and method for tracking the flight of a golf ball | David Rankin, Edgar P. Roberts, Jr. | 1994-08-30 |
| 5303924 | Golf game simulating apparatus and method | Edgar P. Roberts, Jr. | 1994-04-19 |
| 5029866 | Apparatus and method for determining projectile impact locations | Bryce P. Beard, III, Edgar P. Roberts, Jr. | 1991-07-09 |
| 4898388 | Apparatus and method for determining projectile impact locations | Bryce P. Beard, III, Edgar P. Roberts, Jr. | 1990-02-06 |