Assignee
Inventors
- Edwin M. Meyer (4 patents)
- William R. Kem (13 patents)
- Franz van haaren (1 patents)
- John A. Zoltewicz (6 patents)
- Christopher M. De Fiebre (1 patents)
- Roger Lee Papke (14 patents)
- Arthur C. Day (27 patents)
US Patent 5977144 · Granted Nov 2, 1999