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Score from: | % to: % | Current assig. owns from to patents |
patent | score | priority | expiry | expired | references | current assignee | title |
---|---|---|---|---|---|---|---|
D938620 | 9 | 2019-12-04 | 2036-12-14 | 0 | 3 | NINGBO HELONG NEW MATERIAL CO., LTD; | WPC panel |
10577770 | 96 | 2017-06-30 | 2037-11-06 | 0 | 0 | ZHEJIANG UNIVERSITY; | Self-starting negative pressure drainage system for draining groundwater in slope and construction method thereof |