| 12424062 |
Method and system for providing a double chance lottery game with a trifecta option |
Robert D. Hamman |
2025-09-23 |
| 12315347 |
Method and system for producing N-tuple number sets for lottery submissions |
Robert D. Hamman |
2025-05-27 |
| 12039834 |
System and method for generation and validation of multigame printed tickets using multidimensional barcodes |
Robert D. Hamman |
2024-07-16 |
| 11961372 |
System and method for producing non-redundant quick pick number groups for automated lottery ticket selection |
Robert D. Hamman |
2024-04-16 |
| 11846230 |
Adaptive linear linked piston electric power generator |
— |
2023-12-19 |
| 11840957 |
Adaptive linear linked piston electric power generator |
— |
2023-12-12 |
| 11815004 |
Adaptive linear linked piston electric power generator |
— |
2023-11-14 |
| 11168609 |
Adaptive linear linked piston electric power generator |
— |
2021-11-09 |
| 11100760 |
System and method for generation and validation of multigame with bonus game using an electronic card |
Robert D. Hamman |
2021-08-24 |
| 11049367 |
System and method for instant win scratch off ticket game with ticket sales maximization using secondary game |
Robert D. Hamman, Kenneth E. Irwin, Jr. |
2021-06-29 |
| 10636254 |
System and method for instant win scratch off ticket game with ticket sales maximization using secondary game |
Robert D. Hamman, Kenneth E. Irwin, Jr. |
2020-04-28 |
| 10191993 |
Network based sweepstakes gaming system incorporating an alternative method of contestant entry |
Anthony James Ebert, Robert D. Hamman, William C. Kennedy, III, Robert McKee |
2019-01-29 |
| 8870084 |
Method and system for the generation and validation of personal identification numbers |
Robert D. Hamman, William C. Kennedy, III |
2014-10-28 |
| 7327271 |
Portable weather detector and alert system |
Lawrence Tibor Greenstein |
2008-02-05 |
| 6923133 |
Boatlift buoyancy system |
Lance Hendrickson |
2005-08-02 |
| 6829695 |
Enhanced boolean processor with parallel input |
— |
2004-12-07 |
| 6535150 |
Method and apparatus for implementing run-length compression |
— |
2003-03-18 |
| 6507877 |
Asynchronous concurrent dual-stream FIFO |
— |
2003-01-14 |
| 6334123 |
Index relational processor |
Merle Thomas Proulx |
2001-12-25 |
| 5903653 |
Vehicle security system |
Duane Sayers |
1999-05-11 |
| 5880775 |
Method and apparatus for detecting changes in a video display |
— |
1999-03-09 |
| 5546194 |
Method and apparatus for converting a video image format to a group III fax format |
— |
1996-08-13 |
| 5501255 |
Fuel recovery system |
Matthew P. Tortu |
1996-03-26 |
| 5166977 |
Protocol converter for a secure FAX transmission system |
— |
1992-11-24 |
| 4659313 |
Control yoke apparatus for computerized aircraft simulation |
Robert J. Kuster |
1987-04-21 |
