Inventor · disambiguated record
John W. Heffner
Also filed as: HEFFNER JOHN W
4 granted patents·47 citations·filing 2010–2015
75Inventor score
Technology areasH04N
Top patents by PatentIndex Score
4 records- 0193US8402494B1Switching contentHU NINGNING·Filed 2010·Granted Mar 19, 2013·41 cites·24 claims
- 0279US10313734B1Switching contentCONVIVA INC·Filed 2015·Granted Jun 4, 2019·2 cites·37 claims
- 0379US10313035B1Switching contentCONVIVA INC·Filed 2015·Granted Jun 4, 2019·2 cites·15 claims
- 0476US9204061B2Switching contentCONVIVA INC·Filed 2013·Granted Dec 1, 2015·2 cites·16 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →