Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331821 | Method of starting and running an internal combustion engine connected to a refrigerant compressor | Jay L. Hanson, Doyle G. Herrig, James E. Nixon, Gerald J. Ladendorf, Norman F. Spear | 1994-07-26 |
| 5228301 | Methods and apparatus for operating a refrigeration system | Lars I. Sjoholm, Peter W. Freund, Sung L. Kwon, Lee J. Erickson, David H. Taylor | 1993-07-20 |
| 5172560 | Method of operating a transport refrigeration system | Romuald M. Jurewicz, Jay L. Hanson, Jeffrey B. Berge, Jayaram Seshadri, Alan D. Gustafson +3 more | 1992-12-22 |
| 5161384 | Method of operating a transport refrigeration system | Jay L. Hanson, Norman F. Spear | 1992-11-10 |
| 4918932 | Method of controlling the capacity of a transport refrigeration system | Alan D. Gustafson, David A. Christiansen, Stanley O. Hoium, Robert L. Harrington, Dannis R. Johnson +1 more | 1990-04-24 |
| 4257240 | Container refrigeration unit | David A. Christiansen, Kevin W. Kiefer, Ronald W. Seipp, Lawrence J. Shirek, Robert L. Harrington | 1981-03-24 |