Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428213 | Substance dispensing system and method of making | Yuwei Liu, David W. Carnahan | 2025-09-30 |
| 11999556 | Substance dispensing system and method of making | David W. Carnahan, Yuwei Liu | 2024-06-04 |
| 10239087 | Multi-bead applicator | James Galvin, David L. Kunkle, James D. Haaser, Paul Snowwhite, Ronald Vollmer +2 more | 2019-03-26 |
| 10150607 | Adhesive packaging system with membrane | Ronald Vollmer | 2018-12-11 |