Assignee
DOUGLAS DYNAMICS
US·4 granted patents·106 citations·filing 1975–1997
Top patents by PatentIndex Score
4 records- 0179US4026048AMultiple circuit controlDOUGLAS DYNAMICS·Filed 1975·Granted May 31, 1977·35 cites·16 claims
- 0263US6253470B1Hydraulic and electrical control systems for use with vehicle accessory unitsDOUGLAS DYNAMICS·Filed 1997·Granted Jul 3, 2001·35 cites·27 claims
- 0361US4028820AHydraulic system for vehicle mounted snowplow bladeDOUGLAS DYNAMICS·Filed 1975·Granted Jun 14, 1977·25 cites·3 claims
- 0450US4012175AValve and pump control for a hydraulic systemDOUGLAS DYNAMICS·Filed 1975·Granted Mar 15, 1977·11 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when DOUGLAS DYNAMICS 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 →