Inventor
Leon A. Wirt
Inventor
Joliet, IL, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Gprimary
A01GHorticulture35%
E02FDredging29%
B23PMetal-working not otherwise provided for6%
B60TVehicle brake control systems or parts thereof6%
B66CCranes6%
F15BSystems acting by means of fluids in general6%
F16CShafts6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
4,454,715'Fluid control system'19844,335,631'Method for making a shear blade'19824,195,716'Brake release mechanism'19804,126,235'Tree harvester control linkage'19784,108,224'Tree shear tilting mechanism'19784,077,445'Hydraulic circuit for tree harvester'19784,069,847'Tree shear with spherical blades'19784,029,225'Boom-stick adapter for two-piece boom'19774,013,130'Ripper tip assembly'19773,998,277'Bulldozer assembly with means for pivotally connecting the push arms thereof'19763,995,671'Shear-mechanism-tree harvester'19763,964,803'Self-aligning trunnion bearing assembly'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1984Patents assigned to CATERPILLAR TRACTOR CO (12)· patent assignee history
1976–1984Based in Joliet, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR TRACTOR CO | 12 | 1976–1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Joliet, Illinois, US | 12 | 1976–1984 |