Inventor · disambiguated record
David Alan Woodfield
Also filed as: WOODFIELD DAVID · WOODFIELD DAVID A · WOODFIELD DAVID ALAN
10 granted patents·2 pending applications·307 citations·filing 1988–2024
90Inventor score
Top patents by PatentIndex Score
12 records- 0182US7765955B2Pet doorPET MATE LTD·Filed 2006·Granted Aug 3, 2010·34 cites·5 claims
- 0279US4905230AToken ring expander and/or hubMADGE NETWORKS LTD·Filed 1988·Granted Feb 27, 1990·62 cites·7 claims
- 0378US5905523AInteractive systemTWO WAY TV LTD·Filed 1996·Granted May 18, 1999·134 cites·25 claims
- 0467US8839556B2Pet door systems and methods of operation thereofBROOKS STEVE MARTIN·Filed 2013·Granted Sep 23, 2014·6 cites·16 claims
- 0564US2025116150A1Dock door access apparatusE TRACK LTD·Filed 2024·Application pending·0 cites
- 0663US6515992B1Method and apparatus for input of dataTWO WAY TV LTD·Filed 1998·Granted Feb 4, 2003·41 cites·9 claims
- 0761US2025046166A1Asset control systemE TRACK LTD·Filed 2024·Application pending·0 cites
- 0855US12180771B2Dock door access apparatusE TRACK LTD·Filed 2022·Granted Dec 31, 2024·0 cites·19 claims
- 0951US4985888AToken ring system hierarchyMADGE NETWORKS LTD·Filed 1989·Granted Jan 15, 1991·16 cites·3 claims
- 1047US12112608B2Asset control systemE TRACK LTD·Filed 2020·Granted Oct 8, 2024·0 cites·19 claims
- 1135US6301243B1Method and apparatus for transmitting dataTWO WAY TV LTD·Filed 1998·Granted Oct 9, 2001·12 cites·17 claims
- 1229US5961574ADevice for obtaining positional informationFiled 1998·Granted Oct 5, 1999·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →