Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5438886 | Volumetric measurement device for a dispensing container | John H. Knowles, Jr. | 1995-08-08 |
| 5383373 | Method for measuring topical dosage dispensed | John H. Knowles, Jr. | 1995-01-24 |