Inventor · disambiguated record
David Leslie Ellgen
Also filed as: ELLGEN DAVID L · ELLGEN DAVID LESLIE
1 granted patent·2 pending applications·6 citations·filing 2005–2018
28Inventor score
Technology areasH04N
Files withPESA SWITCHING SYSTEMS INC3
Top patents by PatentIndex Score
3 records- 0165US7542099B2Apparatus and method for performing internal routing and signal processingPESA SWITCHING SYSTEMS INC·Filed 2005·Granted Jun 2, 2009·6 cites·19 claims
- 0235US2007248115A1Distributed routing system and methodPESA SWITCHING SYSTEMS INC·Filed 2007·Application pending·0 cites
- 0322US2019349609A1System and method of controlling access to audio and video feeds in a closed networkPESA SWITCHING SYSTEMS INC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →