Inventor · disambiguated record
Steven Ritchie
Also filed as: RITCHIE STEVEN · RITCHIE STEVEN L · RITCHIE STEVEN S
9 granted patents·1 pending application·538 citations·filing 1980–2019
91Inventor score
Top patents by PatentIndex Score
10 records- 0197USD335150STrigger handle switch for pinball type gamesWILLIAMS ELECTRONICS GAMES INC·Filed 1991·Granted Apr 27, 1993·117 cites·1 claims
- 0294US4606545ABi-level pinball machine providing interlevel ball travelWILLIAMS ELECTRONICS INC·Filed 1981·Granted Aug 19, 1986·146 cites·1 claims
- 0394US4373725APinball machine having magnetic ball controlWILLIAMS ELECTRONICS INC·Filed 1980·Granted Feb 15, 1983·132 cites·11 claims
- 0488US8915434B2Fraud preventionMITCHELL GRAEME·Filed 2011·Granted Dec 23, 2014·27 cites·18 claims
- 0578US10439714B2Mobile device for optical wireless communicationPURELIFI LTD·Filed 2018·Granted Oct 8, 2019·3 cites·32 claims
- 0676US4685677AAutomatic replay control system and method for amusement devicesWILLIAMS ELECTRONICS INC·Filed 1986·Granted Aug 11, 1987·78 cites·9 claims
- 0774US10855369B2Mobile device for optical wireless communicationPURELIFI LTD·Filed 2019·Granted Dec 1, 2020·2 cites·27 claims
- 0871US6932703B1Method and apparatus for a slot machine gaming device simulating a bank robberyFiled 2003·Granted Aug 23, 2005·30 cites·48 claims
- 0967US8704633B2Fraud preventionROSS GARY·Filed 2011·Granted Apr 22, 2014·3 cites·9 claims
- 1045US2005239379A1Miracle Sand, a process that removes paint runs, orange peel and other flaws from latex paint, lacquer and other coatings with the use of Miracle Sand and a sanding spongeRITCHIE STEVEN L·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →