| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| James D. RYKEN | ball joint for servo piston actuation in a bent axis hydraulic unit | 06257119 | Roland | 2001 |
| James D. RYKEN | single-piece proportional control | 06260468 | Roland | 2001 |
| James D. RYKEN | hydraulic control cold start neutral valve | 06422254 | Roland | 2002 |
| Jim D. RYKEN | retaining system for slipper holddown pins | 05784949 | Roland | 1998 |
| Jim D. RYKEN | loop flushing circuit for lubricating rotating elements in a hydrostatic transmission module | 06263670 | Roland | 2001 |
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