William K. Bertram
19Patents
13h-index
17Co-inventors
75Inventor score
Filing activity: Jan 2, 1985 → Sep 5, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6537150B1 | Gaming devices having reverse-mapped game set | Physics | 583 | Expired |
| US7575517B2 | Techniques for generating random awards using a plurality of average values | Physics | 330 | Expired |
| US5393067A | System, method and apparatus for generating large jackpots on live game card tables | Human Necessities | 310 | Expired |
| US5796389A | Reduced noise touch screen apparatus and method | Physics | 309 | Expired |
| US4911449A | Reel monitoring device for an amusement machine | Physics | 178 | Expired |
| US5058893A | Reel monitoring device for an amusement machine | Physics | 95 | Expired |
| US7628691B2 | Dynamic paytable for interactive games | Physics | 82 | Expired |
| US6476798B1 | Reduced noise touch screen apparatus and method | Physics | 64 | Expired |
| US6541921B1 | Illumination intensity control in electroluminescent display | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4660833A | Reel monitoring and diagnostic device for an amusement machine | Physics | 56 | Expired |
| US6734843B2 | Reduced noise touch screen apparatus and method | Physics | 28 | Expired |
| US7811168B2 | Random pay gaming system using weighting function with maximum, minimum, and average value | Physics | 18 | Expired |
| US7887415B2 | Random payout while maintaining the progressive prize pool at the predetermined average pool size | Physics | 13 | Active |
| US10493329B1 | Golf ball tracking system and method | Human Necessities | 9 | Active |
| US7871328B2 | Random pay using non-gaming revenue | Physics | 8 | Active |
| US8814659B2 | Techniques for generating a random awards using a plurality of average values | Physics | 2 | Active |
| US9501900B2 | Gaming system and method combining RNG-based machines and hybrid finite pool-based machines | Physics | 1 | Active |
| US8715064B2 | Dynamic paytable for interactive games | Physics | 1 | Active |
| US8544560B2 | Drive mechanism | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.