For the Inventor, By the Inventor

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Chicago, IL, United States of America

Williams Electronics Games, Inc.

USPTO Granted Patents = 91

Trademarks = 92

Forward Citations = 8,300

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65 inventors (with patents filed for the assignee):

John R Krutsch (18 out of 35 patents)

Patrick M Lawlor (12 out of 14 patents)

Charles R Bleich (9 out of 27 patents)

4. John W Skalon (9 out of 12 patents)

5. Barry S Oursler (8 out of 8 patents)

6. Thomas W Uban (7 out of 7 patents)

7. James A Patla (7 out of 8 patents)

8. Carl A Biagi (7 out of 7 patents)

9. George A Gomez (6 out of 20 patents)

10. Python V Anghelo (6 out of 8 patents)

11. Lawrence E DeMar (5 out of 28 patents)

12. Bradley D Cornell (5 out of 5 patents)

13. Winston H Schilling (5 out of 5 patents)

14. Zofia Bil (5 out of 5 patents)

15. John T Trudeau (5 out of 6 patents)

Core Competencies:

Pinball Machine

Playfield Assembly

Electronics Modification

Interactive Play

Amusement Device

Display Panel

Ball Diverter

Magnetic Crane

Game Playfield Mounting

Retractable Ball Cage

Drop Target

Flipper Feeder Ramp

91 patents: Sort by Forward Citations

1. 6199861 - Method and kit for retrofitting a pinball machine (2001-03-13),

2. 6164644 - Method of modifying electronics contained in a controller box of a (2000-12-25),

3. 616464 - Method of modifying electronics contained in a controller box of a (2000-12-26),

4. 6158737 - Playfield assembly for a pinball-machine (2000-12-12),

5. 6155565 - Method and kit retrofitting a pinball machine (2000-12-05),

6. 6149153 - Automatic propelling feature for pinball games (2000-11-21),

7. 6135449 - Mounting mechanism for a playfield of a pinball machine (2000-10-24),

8. 6129353 - Method of displaying video images projected from a video display of a (2000-10-10),

9. 6120021 - Lock-down bar release system for a pinball machine (2000-09-19),

10. 6113097 - Method of replacing a playfield of a pinball machine (2000-09-05),

11. 6059288 - Retractable ball cage for a rolling ball game (2000-05-09),

12. 6047962 - Amusement game with pinball playfield and combined flipper/four-way (2000-04-11),

13. 6036189 - Game with viewing panel having variable optical characteristics for (2000-03-14),

14. 6036188 - Amusement game with pinball type playfield and virtual video images (2000-03-14),

15. 6000697 - Display for a pinball game (1999-12-14),

Williams Electronics Games, Inc. is a leading manufacturer of arcade video games and pinball machines. With a rich history spanning over several decades, the company has been responsible for creating popular titles such as Defender, Joust, and The Addams Family Pinball. Williams Electronics Games is known for its innovation, high-quality craftsmanship, and immersive gameplay experiences. Visit our website to explore our wide range of classic and modern arcade games.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

91 Patents

#64 in Chicago, IL

#234 in Illinois

#3,952 in US

#8,170 in the World

Chicago, IL, United States of America

Williams Electronics Games, Inc.

Forward Citations = 8,300

65 inventors:

John R Krutsch (18 out of 35 patents)

Patrick M Lawlor (12 out of 14 patents)

Charles R Bleich (9 out of 27 patents)

4. John W Skalon (9 out of 12 patents)

5. Barry S Oursler (8 out of 8 patents)

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