Assignee
NORTHWEST NATURAL GAS COMPANY
US·3 granted patents·71 citations·filing 1983–2017
Top patents by PatentIndex Score
3 records- 0190US9803803B1System for compressed gas energy storageNORTHWEST NATURAL GAS COMPANY·Filed 2015·Granted Oct 31, 2017·49 cites·13 claims
- 0256US4530247ATimed gas metering and distribution systemNORTHWEST NATURAL GAS COMPANY·Filed 1983·Granted Jul 23, 1985·22 cites·19 claims
- 0350US10465851B1System for compressed gas energy storageNORTHWEST NATURAL GAS COMPANY·Filed 2017·Granted Nov 5, 2019·0 cites·5 claims
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