Inventor
Harold K. Beckstrom
Inventor
Lisbon, ND, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Fprimary
E02FDredging27%
B62DMotor vehicles13%
Y10TTechnical subjects covered by former us classification13%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles7%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects7%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for7%
E21BEarth or rock drilling7%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general7%
F01PCooling of machines or engines in general7%
F15BSystems acting by means of fluids in general7%
PatentTitleYear
6,854,546'Auxiliary cab lift spring'20056,431,049'Manifold for maintaining a latch actuator under pressure and accommodating leaks'20026,257,359'Air handling system for engines'20014,148,366'Variable speed auger for use with a skid steer vehicle'19794,117,944'Backhoe mounting assembly'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2005Patents assigned to CLARK EQUIPMENT CO (5)· patent assignee history
1978–2005Based in Lisbon, ND, US· patent location history
2002Patents assigned to JEM TECHNICAL MARKETING CO INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CLARK EQUIPMENT CO | 5 | 1978–2005 |
| JEM TECHNICAL MARKETING CO INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lisbon, ND, US | 5 | 1978–2005 |