Assignee
BERTELSEN WILLIAM R
US·4 granted patents·35 citations·filing 1974–1987
Top patents by PatentIndex Score
4 records- 0170US4175637ASurface effect vehicles and guideways thereforBERTELSEN WILLIAM R·Filed 1974·Granted Nov 27, 1979·23 cites·6 claims
- 0239US4530545ASegmented air-track apparatusBERTELSEN WILLIAM R·Filed 1982·Granted Jul 23, 1985·8 cites·6 claims
- 0333US4283094AAir suspension system for vehicle trackBERTELSEN WILLIAM R·Filed 1979·Granted Aug 11, 1981·4 cites·11 claims
- 0426US4778019ADynamic seals for vehicle air suspensionsBERTELSEN WILLIAM R·Filed 1987·Granted Oct 18, 1988·0 cites·8 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →