Inventor
Paul A. Dvorak
Inventor
Sanford, NC, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Hprimary
F16HGearing25%
E02FDredging23%
F16DCouplings for transmitting rotation10%
F15BSystems acting by means of fluids in general8%
B60WConjoint control of vehicle sub-units of different type or different function6%
B62DMotor vehicles6%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology4%
Y10TTechnical subjects covered by former us classification4%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for2%
PatentTitleYear
10,119,556System having combinable transmission and implement circuits201810,118,656Articulated machine employing stabilizers and steering interlock20189,605,756'Hybrid hydrostatic-direct drive transmission'20179,347,554'Hydrostatic drive system'20169,303,633'Over-speed control system and method'20169,096,230'Hystat drive system having coasting functionality'20158,833,069'Hydrostatic circuits with variable charge and variable flushing systems'20148,790,209'Motor assembly for final drive'20147,849,688'Method and apparatus for retarding an engine'20107,707,829'Flushing system having a single charge relief valve'20107,287,620'Method and apparatus for controlling the speed ranges of a machine'20077,096,772'System and method for controlling hydraulic fluid flow'20067,017,674'Method of changing operating characteristics of an implement'20066,866,467'Hydraulically actuated quick coupling device'20056,837,319'Control system for, and a method of, disengaging a hydraulically-driven implement from a work machine'20056,644,335'Precision orificing for pilot operated control valves'20036,609,368'Automatic downshift and override control for a transmission'20036,520,593'Hydraulic positioning system'20036,374,605'Hydrostatic transmission control with pressure feedback'20026,266,960'Hydraulic control for a quick coupler'20016,158,544'Steering system for an articulated machine'20005,934,406'Jerk control valve for pilot operated steering system'19995,897,176'Braking apparatus and method for use with a moving vehicle'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2018Patents assigned to CATERPILLAR INC (12)· patent assignee history
1999–2001Based in Kewanee, IL, US· patent location history
2001–2010Patents assigned to CATERPILLAR SARL (9)· patent assignee history
2002–2018Based in Sanford, NC, US· patent location history
2014–2015Patents assigned to DEMICK CHRISTOPHER J (2)· patent assignee history
2014–2015Patents assigned to DVORAK PAUL A (2)· patent assignee history
2016Based in Hanna City, IL, US· patent location history
2017–2018Based in Peoria, IL, US· patent location history
2018Patents assigned to CATERPILLAR GLOBAL MINING AMERICA LLC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR INC | 12 | 1999–2018 |
| CATERPILLAR SARL | 9 | 2001–2010 |
| DEMICK CHRISTOPHER J | 2 | 2014–2015 |
| DVORAK PAUL Aself | 2 | 2014–2015 |
| CATERPILLAR GLOBAL MINING AMERICA LLC | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sanford, NC, US | 16 | 2002–2018 |
| Kewanee, Illinois, US | 4 | 1999–2001 |
| Peoria, Illinois, US | 2 | 2017–2018 |
| Hanna City, Illinois, US | 1 | 2016 |