Williams Electronics Games, Inc.
90Patents
0Active
90Granted
41Portfolio score
Filing activity: Apr 25, 1986 → May 28, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5257179A | Audit and pricing system for coin-operated games | Physics | 267 | Expired |
| US6036188A | Amusement game with pinball type playfield and virtual video images | Human Necessities | 183 | Expired |
| USD352738S | Pinball game cabinet | General | 147 | Expired |
| US5316303A | Holographic display for pinball games | Physics | 146 | Expired |
| US5322283A | Rotary ball receptacle for a pinball game | Human Necessities | 144 | Expired |
| US5123647A | Interactive playfield feature for pinball games | Human Necessities | 144 | Expired |
| US5149094A | Player-operated control system for pinball games | Human Necessities | 143 | Expired |
| USD408366S | Combined flipper switch and four-way switch | General | 140 | Expired |
| US5516103A | Dual function drop target for pinball game | Human Necessities | 140 | Expired |
| US5890715A | Linkable pinball machine | Human Necessities | 136 | Expired |
| US6158737A | Playfield assembly for a pinball-machine | Human Necessities | 135 | Expired |
| US5632482A | Vertically disposed multi-level pinball game | Human Necessities | 131 | Expired |
| US5193807A | Pinball game cabinet | Human Necessities | 130 | Expired |
| US5533726A | Magnetic crane for a pinball game | Human Necessities | 130 | Expired |
| US5507488A | Ball diverter for a pinball game | Human Necessities | 130 | Expired |
| US6199861A | Method and kit for retrofitting a pinball machine | Human Necessities | 130 | Expired |
| US4861037A | Pinball runway and scoring feature | Human Necessities | 129 | Expired |
| US6000697A | Display for a pinball game | Human Necessities | 129 | Expired |
| US5120058A | Multiple path ball ramp for pinball games | Human Necessities | 129 | Expired |
| US5226653A | Multilevel play feature for a pinball game | Human Necessities | 128 | Expired |
| US5720480A | Display panel for a pinball machine | Human Necessities | 128 | Expired |
| US6047962A | Amusement game with pinball playfield and combined flipper/four-way switch | Electricity | 128 | Expired |
| US5806851A | Interactive play for a pinball game | Human Necessities | 128 | Expired |
| US4981298A | Ball diverter playfield feature for pinball machines | Human Necessities | 127 | Expired |
| US5110120A | Back box latch for pinball games | Emerging Cross-Sectional Technologies | 127 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.