Lisa Helfer
5Patents
4h-index
6Co-inventors
39Inventor score
Filing activity: Jan 21, 2004 → Aug 3, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8425323B2 | Wagering game with asset trading | Physics | 20 | Active |
| US7341511B2 | Gaming terminal having an element moveable along a nonlinear path for indicating a game outcome | Physics | 11 | Expired |
| US7780511B2 | Gaming machine having a first bonus event that influences a probability of a second bonus event | Physics | 8 | Active |
| US7644922B2 | Gaming terminal with transformable cabinet | Physics | 5 | Active |
| US9070246B2 | Wagering game with character learning | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.