For the Inventor, By the Inventor

Enter assignee name

Las Vegas, NV, United States of America

Sigma Game, Inc.

USPTO Granted Patents = 17

Forward Citations = 5,199

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15 inventors (with patents filed for the assignee):

Robert J Piechowiak (8 out of 13 patents)

Frank C DeSimone (7 out of 20 patents)

Curtis J Crawford (5 out of 6 patents)

4. Linn Anthony McKay (3 out of 21 patents)

5. James P Jackson (2 out of 12 patents)

6. Charles R Miller, Sr (2 out of 5 patents)

7. Thomas J Sanduski (2 out of 2 patents)

8. Alec Ginsburg (1 out of 14 patents)

9. Michael Thomas Dini (1 out of 1 patent)

10. Darin T Gifford (1 out of 1 patent)

11. Henry C Nicholson (1 out of 1 patent)

12. Darren W White (1 out of 1 patent)

13. John W Burnside (1 out of 1 patent)

14. Michael O Parham (1 out of 2 patents)

15. Darren L DeWall (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 6755737 - Gaming machine having bonus game (2004-06-29),

2. 6595856 - Electronic security technique for gaming software (2003-07-22),

3. 6558253 - Slot machine with award multiplier display (2003-05-06),

4. 6270412 - Slot machine with symbol save feature (2001-08-07),

5. 6168523 - Bonus award feature in a gaming machine (2001-01-02),

6. 6149521 - Video poker game with multiplier card (2000-11-21),

7. 6138814 - Front loading cash box assembly (2000-10-31),

8. 6110040 - Video poker machine with revealed sixth card (2000-08-29),

9. 6012982 - Bonus award feature in linked gaming machines having a common feature (2000-01-11),

10. 5997401 - Slot machine with symbol save feature (1999-12-07),

11. D412347 - Slot machine cabinet (1999-07-27),

12. 5807172 - Three reel slot machine with nine ways to win (1998-09-15),

13. D392340 - Display glass for slot machine showing award multiplication values (1998-03-17),

14. 5580309 - Linked gaming machines having a common feature controller (1996-12-03),

15. D344296 - Slant-top gaming machine (1994-02-15),

Sigma Game, Inc. is a leading developer and publisher of innovative mobile games. With a focus on creating engaging and entertaining experiences for players of all ages, Sigma Game, Inc. has established itself as a prominent player in the gaming industry. The company's diverse portfolio includes a wide range of genres, from casual and puzzle games to action-packed adventures. With a passion for creativity and a commitment to excellence, Sigma Game, Inc. continues to push the boundaries of what's possible in mobile gaming.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

17 Patents

#75 in Las Vegas, NV

#143 in Nevada

#18,855 in US

#35,837 in the World

Las Vegas, NV, United States of America

Sigma Game, Inc.

Forward Citations = 5,199

15 inventors:

Robert J Piechowiak (8 out of 13 patents)

Frank C DeSimone (7 out of 20 patents)

Curtis J Crawford (5 out of 6 patents)

4. Linn Anthony McKay (3 out of 21 patents)

5. James P Jackson (2 out of 12 patents)

Please report any incorrect information to [email protected]

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