Assignee
Inventors
- Raymond E. Ragland (14 patents)
- Robert S. Timmerberg (3 patents)
- Christopher V. Ragland (11 patents)
- Matthew S. Remke (9 patents)
- Stephen J. Fairchild (3 patents)
- G. William Ragland (18 patents)
US Patent 6451447 · Granted Sep 17, 2002