Engelhart; Robert L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engelhart; Robert L..The latest application filed is for "data charging during charging function outages".
- Engelhart; Robert L. - Bellevue WA
- Engelhart; Robert L. - Redmond WA
| Patent | Date |
|---|---|
| Data charging during charging function outages Grant 11,083,044 - Engelhart August 3, 2 | 2021-08-03 |
| Data Charging During Charging Function Outages App 20210037598 - Engelhart; Robert L. | 2021-02-04 |
| Data charging during charging function outages Grant 10,813,167 - Engelhart October 20, 2 | 2020-10-20 |
| Data Charging During Charging Function Outages App 20200267802 - Engelhart; Robert L. | 2020-08-20 |
| Using an IP multimedia subsystem for HTTP session authentication Grant 10,742,631 - Engelhart A | 2020-08-11 |
| Data charging during charging function outages Grant 10,531,515 - Engelhart J | 2020-01-07 |
| Using An Ip Multimedia Subsystem For Http Session Authentication App 20180278599 - Engelhart; Robert L. | 2018-09-27 |
| Using an IP multimedia subsystem for HTTP session authentication Grant 9,992,183 - Engelhart June 5, 2 | 2018-06-05 |
| Using An Ip Multimedia Subsystem For Http Session Authentication App 20140282990 - Engelhart; Robert L. | 2014-09-18 |
| System and method for non-IMS application service access over IP multimedia subsystem Grant 8,762,559 - Engelhart June 24, 2 | 2014-06-24 |
| System And Method For Non-ims Application Service Access Over Ip Multimedia Subsystem App 20130159520 - Engelhart; Robert L. | 2013-06-20 |
| Prepaid communication services utilizing a prepaid identifier combined with another identifier Grant 7,907,937 - Engelhart March 15, 2 | 2011-03-15 |
| Secure online purchasing Grant 7,849,013 - Engelhart December 7, 2 | 2010-12-07 |
| Prepaid telecommunication system Grant 7,848,734 - Engelhart December 7, 2 | 2010-12-07 |
| Centralized communications network charging methods and apparatus Grant 7,515,696 - Engelhart April 7, 2 | 2009-04-07 |
| Multi-standard Prepaid Communication Services App 20080096525 - Engelhart; Robert L. | 2008-04-24 |
| Multi-standard prepaid communication services Grant 7,333,809 - Engelhart February 19, 2 | 2008-02-19 |
| Virtual subscriber network Grant 7,266,362 - Engelhart September 4, 2 | 2007-09-04 |
| Biometric authentication of a wireless device user Grant 7,263,347 - Engelhart August 28, 2 | 2007-08-28 |
| Secure online purchasing Grant 7,110,987 - Engelhart September 19, 2 | 2006-09-19 |
| Virtual subscriber network App 20050243863 - Engelhart, Robert L. | 2005-11-03 |
| Virtual subscriber network Grant 6,934,530 - Engelhart August 23, 2 | 2005-08-23 |
| Secure online purchasing App 20050182717 - Engelhart, Robert L. | 2005-08-18 |
| Virtual subscriber network App 20040203580 - Engelhart, Robert L. | 2004-10-14 |
| Multi-standard prepaid communication services App 20040185828 - Engelhart, Robert L. | 2004-09-23 |
| Prepaid telecommunication system App 20040098310 - Engelhart, Robert L. | 2004-05-20 |
| Biometric authentication of a wireless device user App 20030220095 - Engelhart, Robert L. | 2003-11-27 |
| Secure online purchasing App 20030163383 - Engelhart, Robert L. | 2003-08-28 |
| Centralized communications network charging methods and apparatus App 20030158812 - Engelhart, Robert L. | 2003-08-21 |
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