Assignee
YANG ZENGLI
CN·2 granted patents·1 pending application·5 citations·filing 2005–2014
Top patents by PatentIndex Score
3 records- 0157US7438025B2Ultra-expansion four-stroke internal combustion engineYANG ZENGLI·Filed 2005·Granted Oct 21, 2008·5 cites·9 claims
- 0235US8827277B2Oil-reserving piston ringYANG ZENGLI·Filed 2010·Granted Sep 9, 2014·0 cites·14 claims
- 0335US2017145941A1Method for realizing variable compression ratio and variable air-fuel ratio of internal combustion engineYANG ZENGLI·Filed 2014·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →