Szrek; Walter
Patent Applications and Registrations
Patent applications and USPTO patent grants for Szrek; Walter.The latest application filed is for "payment method and system".
- Szrek; Walter - East Greenwich RI
- Szrek; Walter - Warsaw PL
| Patent | Date |
|---|---|
| Protecting lottery receipts Grant 10,115,097 - Szrek , et al. October 30, 2 | 2018-10-30 |
| Securing gaming transactions Grant 9,196,116 - Szrek , et al. November 24, 2 | 2015-11-24 |
| Payment Method And System App 20130151320 - Szrek; Walter ; et al. | 2013-06-13 |
| Management of outcomes of games of chance Grant 8,182,327 - Szrek , et al. May 22, 2 | 2012-05-22 |
| Method And System For Authentication App 20100304852 - Szrek; Walter ; et al. | 2010-12-02 |
| Secure Provisioning of Random Numbers to Remote Clients App 20100240440 - Szrek; Walter ; et al. | 2010-09-23 |
| Method and system for authentication Grant 7,749,080 - Szrek , et al. July 6, 2 | 2010-07-06 |
| Method for selling lottery tickets from a POS terminal Grant 7,627,497 - Szrek , et al. December 1, 2 | 2009-12-01 |
| Protecting Lottery Receipts App 20090150290 - Szrek; Irena ; et al. | 2009-06-11 |
| Management Of Outcomes Of Games Of Chance App 20090131140 - Szrek; Walter ; et al. | 2009-05-21 |
| Lottery game tickets and methods for making same Grant 7,303,134 - Ehrhart , et al. December 4, 2 | 2007-12-04 |
| Securing Gaming Transactions App 20070213125 - Szrek; Walter ; et al. | 2007-09-13 |
| Method and system for authentication App 20060040726 - Szrek; Walter ; et al. | 2006-02-23 |
| Method of generating unpredictable and auditable random numbers Grant 6,934,846 - Szrek , et al. August 23, 2 | 2005-08-23 |
| Apparatus and method for selling lottery tickets from a POS terminal App 20040193464 - Szrek, Walter ; et al. | 2004-09-30 |
| Lottery game tickets and methods for making same App 20040182928 - Ehrhart, Michael A. ; et al. | 2004-09-23 |
| Method Of Generating Unpredictable And Auditable Random Numbers App 20040141611 - Szrek, Walter ; et al. | 2004-07-22 |
| Lottery game tickets and methods for making same Grant 6,752,319 - Ehrhart , et al. June 22, 2 | 2004-06-22 |
| Apparatus and method for securely determining an outcome from multiple random event generators Grant 6,477,251 - Szrek , et al. November 5, 2 | 2002-11-05 |
| Methods for processing security documents Grant 6,419,157 - Ehrhart , et al. July 16, 2 | 2002-07-16 |
| Scratch-off material sensor system for lottery game tickets App 20020084327 - Ehrhart, Michael A. ; et al. | 2002-07-04 |
| Material detection systems for security documents Grant 6,405,929 - Ehrhart , et al. June 18, 2 | 2002-06-18 |
| Lottery game tickets and methods for making same App 20020053597 - Ehrhart, Michael A. ; et al. | 2002-05-09 |
| Apparatuses for processing security documents Grant 6,304,660 - Ehrhart , et al. October 16, 2 | 2001-10-16 |
| Security document voiding system Grant 6,186,404 - Ehrhart , et al. February 13, 2 | 2001-02-13 |
| Secure gaming ticket and validation method for same Grant 5,935,000 - Sanchez, III , et al. August 10, 1 | 1999-08-10 |
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