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Patent applications and USPTO patent grants for Christianson; Rollin C..The latest application filed is for "displacement measurement device".
Patent | Date |
---|---|
Displacement measurement device Grant 7,969,146 - Christianson , et al. June 28, 2 | 2011-06-28 |
Control apparatus for hydraulic cylinder Grant 7,387,061 - Kobata , et al. June 17, 2 | 2008-06-17 |
Displacement Measurement Device App 20070290677 - Christianson; Rollin C. ;   et al. | 2007-12-20 |
Control Apparatus for Hydraulic Cylinder App 20070144165 - Kobata; Hiroshi ;   et al. | 2007-06-28 |
High-temperature, high-pressure oxygen metering valve Grant 5,251,663 - Christianson , et al. October 12, 1 | 1993-10-12 |
Variable orifice flow regulator Grant 5,020,774 - Christianson June 4, 1 | 1991-06-04 |
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