Assignee
Inventors
- Gladys L. Evans (1 patents)
- Judson Clark (4 patents)
- Glenn O. Scheer (11 patents)
- William Michael Walter (1 patents)
- William Daniel Robinson (8 patents)
- David William Stubben (5 patents)
- Alfred S. Smemo (11 patents)
US Patent 6644429 · Granted Nov 11, 2003