EE

Erik S. Ellifson

OD Oshkosh Defense: 39 patents #3 of 119Top 3%
OS Oshkosh: 22 patents #35 of 384Top 10%
📍 Oshkosh, WI: #6 of 837 inventorsTop 1%
🗺 Wisconsin: #227 of 40,088 inventorsTop 1%
Overall (All Time): #36,615 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 1–25 of 62 patents

Patent #TitleCo-InventorsDate
12409718 Structural refuse vehicle body with undermounted batteries Colin Wheeler, Jeremy Andringa, Peter K. Kramer, Nader Nasr, Martin Schimke +3 more 2025-09-09
12404847 Reciprocating piston pump Kai Schubart, Christopher J. Rukas, Patrick S. Dillman, Aaron J. Rositch 2025-09-02
12397635 Systems and methods for vehicle suspensions Andrew Drach, Aaron J. Rositch, Devon C. Palmer 2025-08-26
12370860 Position dependent damper Patrick S. Dillman, Jason J. Zuleger, Aaron J. Rositch, Robert K. Sollenskog 2025-07-29
12366279 Suspension element systems and methods Paul Dumitru, Aaron J. Rositch, Patrick S. Dillman, Kai Schubart, Robert K. Sollenskog 2025-07-22
12122212 Systems and methods for vehicle suspension assemblies Christopher K. Yakes, Colin Wheeler, Jeremy Andringa, Ryan Wolf, Martin Schimke +3 more 2024-10-22
12115826 Gas spring assembly for a vehicle suspension system Roy Venton-Walters, Aaron J. Rositch, Jesse Knoble, Mark L. Steckling 2024-10-15
12098757 Limiting system for a vehicle suspension component Patrick S. Dillman, Aaron J. Rositch 2024-09-24
12065007 Pitch and roll control system for a vehicle Kai Schubart, Christopher J. Rukas, Aaron J. Rositch 2024-08-20
12054027 Vehicle with a position dependent damper Patrick S. Dillman, Jason J. Zuleger, Aaron J. Rositch, Robert K. Sollenskog 2024-08-06
12005777 Systems and methods for vehicle suspensions Andrew Drach, Aaron J. Rositch, Devon C. Palmer 2024-06-11
11993121 Pitch and roll control system for a vehicle Kai Schubart, Christopher J. Rukas, Aaron J. Rositch 2024-05-28
11932068 Suspension element lockout Aaron J. Rositch, Patrick S. Dillman, Kai Schubart 2024-03-19
11813917 Suspension element systems and methods Aaron J. Rositch, Patrick S. Dillman, Kai Schubart, Robert K. Sollenskog 2023-11-14
11815078 Reciprocating piston pump comprising a housing defining a first chamber and a second chamber cooperating with a first piston and a second piston to define a third chamber and a fourth chamber Kai Schubart, Christopher J. Rukas, Patrick S. Dillman, Aaron J. Rositch 2023-11-14
11738615 Suspension element Patrick S. Dillman, Robert K. Sollenskog, Aaron J. Rositch 2023-08-29
11732772 Limiting system for a vehicle suspension component Patrick S. Dillman, Aaron J. Rositch 2023-08-22
11712964 Systems and methods for vehicle suspensions Andrew Drach, Aaron J. Rositch, Devon C. Palmer 2023-08-01
11685219 Position dependent damper for a vehicle suspension system Patrick S. Dillman, Jason J. Zuleger, Aaron J. Rositch, Robert K. Sollenskog 2023-06-27
11649874 Limiting system for a vehicle suspension component Patrick S. Dillman, Aaron J. Rositch 2023-05-16
11584185 Pitch and roll control system for a vehicle Kai Schubart, Christopher J. Rukas, Aaron J. Rositch 2023-02-21
11529836 Pitch and roll control system for a vehicle Kai Schubart, Christopher J. Rukas, Aaron J. Rositch 2022-12-20
11480165 Reciprocating piston pump comprising a housing defining a first chamber and a second chamber cooperating with a first piston and a second piston to define a third chamber and a fourth chamber Kai Schubart, Christopher J. Rukas, Patrick S. Dillman, Aaron J. Rositch 2022-10-25
11465698 Stabilizer bar for a load span tag axle Jason J. Zuleger, Steve Volkman, Ryan Wolf 2022-10-11
11378148 Damper assembly Darin Rosenboom 2022-07-05