Inventor · disambiguated record
James G. Knowles
Also filed as: KNOWLES JAMES · KNOWLES JAMES G · LEVINGTON HENRY J
3 granted patents·1 pending application·34 citations·filing 1977–2015
70Inventor score
Top patents by PatentIndex Score
4 records- 0154US4174016AHydraulic cab tilting systemsDEWANDRE CO LTD C·Filed 1977·Granted Nov 13, 1979·13 cites·8 claims
- 0247US5190356AAND-type control valve for a tractor-trailer braking systemWABCO AUTOMOTIVE UK·Filed 1991·Granted Mar 2, 1993·15 cites·22 claims
- 0339US4275643AHydraulic control systemsDEWANDRE CO LTD C·Filed 1979·Granted Jun 30, 1981·6 cites·5 claims
- 0435US2016103975A1Pre-verification of prescriptionsEnvision Pharmaceutical Holdings LLC·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when James G. Knowles files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →