Assignee
Inventors
- Philip K. Zietlow (28 patents)
- Bernhard H. van Lengerich (69 patents)
- Mathew F. Langenfeld (8 patents)
- Terry J. Reishus (1 patents)
- James L. Stinson (8 patents)
- Gerald L. Wilson (8 patents)
- Michael A. Helser (5 patents)
US Patent 6432460 · Granted Aug 13, 2002