Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733867 | Heat-transferable security stamp | William F. Pinell, Rajendra Mehta, John M. Harden | 2004-05-11 |
| 6607813 | Simulated security thread by cellulose transparentization | David E. Washburn, Watson Gullett, Rajendra Mehta | 2003-08-19 |
| 6410082 | Process for the formation of a heat-transferable security stamp entirely free of non-aqueous solvents | William F. Pinell, Rajendra Mehta, John M. Harden | 2002-06-25 |
| 6139065 | Process for making security paper | David E. Washburn, Rajendra Mehta | 2000-10-31 |
| 6031020 | Cancellation of micr-readable documents by application of an ink containing magnetic particles | Rajendra Mehta, Richard L. Shields | 2000-02-29 |
| 5961152 | Security paper having an embedded and deformed security thread and a process for making the security paper | David E. Washburn, Rajendra Mehta | 1999-10-05 |
| 5944927 | Security paper having an embedded security thread and a process for making the security paper | — | 1999-08-31 |