Inventor
Mark J. Handzel
Inventor
San Diego, CA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication22%
H04WWireless communication networks22%
H04BTransmission17%
H04JMultiplex communication17%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use17%
H04MTelephonic communication6%
PatentTitleYear
7,995,991'Credit based management of telecommunication activity'20117,433,674'Apparatus and method for credit based management of telecommunication activity'20087,266,363'Apparatus and method for credit based management of telecommunication activity'20076,954,470'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20056,842,440'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20056,771,667'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20046,594,481'Apparatus and method for detecting potentially fradulent telecommunication'20036,393,002'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20026,282,180'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20016,014,374'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'20005,734,678'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19985,687,194'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19975,657,358'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels'19975,615,408'Apparatus and method for credit based management of telecommunication activity'19975,121,391'Subscriber RF telephone system for providing multiple speech and/or data singals simultaneously over either a single or a plurality of RF channels'19925,119,375'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19925,022,024'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19914,912,705'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19904,817,089'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'19894,675,863'Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1992Patents assigned to INT MOBILE MACHINES (6)· patent assignee history
1987–2005Based in San Diego, CA, US· patent location history
1997–2005Patents assigned to INTERDIGITAL TECH CORP (9)· patent assignee history
1997Patents assigned to CORAL SYSTEMS INC (1)· patent assignee history
1997–2011Based in Encinitas, CA, US· patent location history
2007Patents assigned to AUTHORIZE NET HOLDINGS INC (1)· patent assignee history
2008–2011Patents assigned to AUTHORIZE NET LLC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INTERDIGITAL TECH CORP | 9 | 1997–2005 |
| INT MOBILE MACHINES | 6 | 1987–1992 |
| AUTHORIZE NET LLC | 2 | 2008–2011 |
| AUTHORIZE NET HOLDINGS INC | 1 | 2007 |
| CORAL SYSTEMS INC | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Diego, California, US | 15 | 1987–2005 |
| Encinitas, California, US | 5 | 1997–2011 |