Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896045 | Apparatus for delivering air through powered axle assemblies | Marvin L. Stone, Anthony L. Ingram | 2011-03-01 |
| 7201066 | System for automatic tire inflation | Marvin L. Stone | 2007-04-10 |
| 7188450 | Use of within-field-element-size CV for improved nutrient fertilization in crop production | William R. Raun, Gordon V. Johnson, Marvin L. Stone, Kyle Freeman | 2007-03-13 |
| 6880291 | Process for in-season fertilizer nutrient application based on predicted yield potential | William R. Raun, Gordon V. Johnson, Marvin L. Stone | 2005-04-19 |
| 6855933 | Optical spectral reflectance sensor and controller | Marvin L. Stone, Duane Needham, William R. Raun, Gordon V. Johnson | 2005-02-15 |
| 6702200 | Nozzle attitude controller for spot and variable rate application of agricultural chemicals and fertilizers | Marvin L. Stone, Stewart D. Reed | 2004-03-09 |
| 6601341 | Process for in-season fertilizer nitrogen application based on predicted yield potential | William R. Raun, Gordon V. Johnson, Marvin L. Stone | 2003-08-05 |
| 6596996 | Optical spectral reflectance sensor and controller | Marvin L. Stone, Duane Needham, William R. Raun, Gordon V. Johnson | 2003-07-22 |
| 4683826 | Subsurface application of chemicals | Howard D. Wittmuss, Orvin C. Burnside | 1987-08-04 |