Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9050850 | Micro motion poppet valve assembly for delivery of ink with large pigment particles to a writing nib and writing instrument comprising same | Christoph L. Gillum, Christopher J. Matice, David Andrew Parrott, Haskell Simpkins, Robert G. Challman +1 more | 2015-06-09 |