Assignee
Inventors
- Daniel F. King (5 patents)
- Isaac Mayer Ehrenberg (8 patents)
- Alexander Sawyer (2 patents)
- Graham Arrick (4 patents)
- Juliette E. Mahaffey (2 patents)
- William W. McFarland (18 patents)
- David J. Carter (26 patents)
US Patent 10933282 · Granted Mar 2, 2021