Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677462 | Method of reducing electro-static discharge (ESD) from conductors on insulators | John Hynes, John Kawand, Lily O'Boyle, Sundar Sadasivan, Leonardo Vincitore | 2010-03-16 |
| 6440277 | Techniques of printing micro-structure patterns such as holograms directly onto final documents or other substrates in discrete areas thereof | — | 2002-08-27 |
| 5393099 | Anti-counterfeiting laminated currency and method of making the same | — | 1995-02-28 |
| 5116548 | Replicaton of microstructures by casting in controlled areas of a substrate | Donald W. Mallik | 1992-05-26 |
| 5085514 | Technique of forming a separate information bearing printed pattern on replicas of a hologram or other surface relief diffraction pattern | Donald W. Mallik | 1992-02-04 |
| 5083850 | Technique of forming a separate information bearing printed pattern on replicas of a hologram or other surface relief diffraction pattern | Donald W. Mallik | 1992-01-28 |
| 5071597 | Plastic molding of articles including a hologram or other microstructure | Donald W. Mallik | 1991-12-10 |
| 5003915 | Apparatus for printing and for forming a hologram on sheet material | Peter Sorbo, Richard E. Dunning | 1991-04-02 |
| 4933120 | Combined process of printing and forming a hologram | Peter Sorbo, Richard E. Dunning | 1990-06-12 |
| 4900111 | Embossed holograms formed on hard metal surfaces | Edward H. Weitzen | 1990-02-13 |
| 4773718 | Holograms embossed into metal surfaces | Edward H. Weitzen | 1988-09-27 |
| 4725111 | Holograms embossed into metal surfaces | Edward H. Weitzen | 1988-02-16 |
| 4455039 | Encoded security document | Edward H. Weitzen, Robert M. Fleming, Manfred R. Kuehnle, C. Frederick W. Ekman, Jurgen M. Kruse +1 more | 1984-06-19 |
| 4313087 | Apparatus for detecting electrically conductive coatings on documents | Edward H. Weitzen | 1982-01-26 |