Assignee
LIAO HSIEH YUAN
TW·4 granted patents·86 citations·filing 1985–2019
Top patents by PatentIndex Score
4 records- 0182US4878404AElectric screwdriverLIAO HSIEH YUAN·Filed 1988·Granted Nov 7, 1989·48 cites·1 claims
- 0276US4653359AStructural improvement of electric screwdriver with respect to the torsion adjustment thereofLIAO HSIEH YUAN·Filed 1985·Granted Mar 31, 1987·38 cites·3 claims
- 0355US11110572B2Connecting shaft structure of electric screwdriverLIAO HSIEH YUAN·Filed 2019·Granted Sep 7, 2021·0 cites·8 claims
- 0451US11331775B2Switch structure of electric screwdriverLIAO HSIEH YUAN·Filed 2019·Granted May 17, 2022·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when LIAO HSIEH YUAN files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →