Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5818624 | Mask for viewing reduced-size radiographic film, particularly mammography film | John Patterson, Hugh Walborn, Lawrence Wilhelm | 1998-10-06 |
| D387866 | Mask for supporting and displaying mammography film | John Patterson | 1997-12-16 |