Assignee
KIRCHHOFF LELAND
US·2 granted patents·272 citations·filing 2006–2007
Top patents by PatentIndex Score
2 records- 0198US8401163B1Methods and systems for call processing and for providing call progress status over a networkKIRCHHOFF LELAND·Filed 2006·Granted Mar 19, 2013·246 cites·67 claims
- 0294US8165572B1Methods and systems for call processing in a wireline and wireless networkKIRCHHOFF LELAND·Filed 2007·Granted Apr 24, 2012·26 cites·19 claims
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