Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9129472 | Gaming device having one or more shared award-modifier reels | David B. Schultz, Nathaniel A. Hammond, Micheal Shackelford | 2015-09-08 |
| 8858319 | Method for enhancing winning outcomes in a reel spinning game | David B. Schultz, Nathanial A. Hammond, Micheal Shackelford | 2014-10-14 |
| 8834257 | Gaming device having one or more shared award-modifier reels | David B. Schultz, Nathaniel A. Hammond, Michael Shackelford | 2014-09-16 |
| 8439743 | Gaming device having one or more shared award-modifier reels | David B. Schultz, Nathanial A. Hammond, Michael Shackelford | 2013-05-14 |
| 8366539 | Method for enhancing winning outcomes in a reel spinning game | David B. Schultz, Nathanial A. Hammond, Michael Shackelford | 2013-02-05 |
| 8075389 | Gaming device having one or more shared award-modifier reels | David B. Schultz, Nathanial A. Hammond, Michael Shackelford | 2011-12-13 |
| 8066563 | Method for enhancing winning outcomes in a reel spinning game | David B. Schultz, Nathanial A. Hammond, Michael Shackelford | 2011-11-29 |
| 5611535 | Gaming machine having compound win line | — | 1997-03-18 |
| 5123649 | Gaming machine with dynamic pay schedule | — | 1992-06-23 |
| 4991848 | Gaming machine with a plateaued pay schedule | Nick Greenwood | 1991-02-12 |