Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6503340 | Method for producing chromium carbide coatings | Michael Gold, Douglas D. Zeigler, George H. Harth, III, James M. Tanzosh, Steven C. Kung +1 more | 2003-01-07 |
| 5996878 | Method of welding 5-G pipe | — | 1999-12-07 |
| 5568835 | Concentric heat exchanger having hydraulically expanded flow channels | George B. Watson | 1996-10-29 |
| 5306704 | Efficient incorporation of silver to improve superconducting fibers | Richard A. Gleixner, Douglas K. Finnemore | 1994-04-26 |
| 5221045 | Bulge formed cooling channels with a variable lead helix on a hollow body of revolution | Michael D. McAninch, Richard L. Holbrook, Chester M. Kawashige, John M. Crapuchettes, James Scala | 1993-06-22 |
| 5208071 | Method for aluminizing a ferritic workpiece by coating it with an aqueous alumina slurry, adding a halide activator, and heating | Thomas L. Davis, Steven E. LeBeau, Kenneth D. Seibert | 1993-05-04 |
| 5135777 | Method for diffusion coating a workpiece with Cr, Si, Al or B by placing coated ceramic alumino-silicate fibers next to the workpiece and heating to diffuse the diffusion coating into the workpiece | Thomas L. Davis, Steven E. LeBeau, Kenneth D. Seibert | 1992-08-04 |
| 5041309 | Method of chromizing a workpiece by applying a coating containing chromium particles onto a ceramic carrier, positioning the carrier proximate the workpiece, and heating both carrier and workpiece to diffuse chromium particles into the workpiece | Thomas L. Davis, Steven E. LeBeau, Kenneth D. Seibert | 1991-08-20 |
| 4840768 | Austenitic Fe-Cr-Ni alloy designed for oil country tubular products | Henry A. Domian, Alex S. Miller, Kenneth D. Seibert | 1989-06-20 |
| 4747431 | Integral joint forming of work-hardenable high alloy tubing | Richard L. Holbrook, Dean L. Mayer, Kurt J. Kahlow, deceased | 1988-05-31 |
| 4649728 | Integral joint forming of work-hardenable high alloy tubing | Richard L. Holbrook, Dean L. Mayer, Kurt J. Kahlow, deceased | 1987-03-17 |