Individual holder
BARKER WALTER D
US·4 granted patents·55 citations·filing 1979–2019
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0190US4274790AGranular material unloading vehicle with pressure-relief boxBARKER WALTER D·Filed 1979·Granted Jun 23, 1981·52 cites·8 claims
- 0269US10264537B2Time code controlled logic deviceBARKER WALTER D·Filed 2016·Granted Apr 16, 2019·2 cites·13 claims
- 0351US10904844B2Time code controlled logic deviceBARKER WALTER D·Filed 2019·Granted Jan 26, 2021·0 cites·20 claims
- 0448US10320135B2Miniature interconnection device for pyrotechnics displaysBARKER WALTER D·Filed 2015·Granted Jun 11, 2019·1 cites·21 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →