| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | United States | 3 | |
| #3 | Canada | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Optics | |
| #3 | Machines | |
| #4 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Books | |
| #2 | Unspecified technologies | |
| #3 | Electrography | |
| #4 | Printing processes | |
| #5 | Photosensitive materials | |
| #6 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wicker Ralph C | 12 |
| #2 | Morelle Frederic T | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US5193853A | Nonreplicable document and method for making same | |
| CA2075063A1 | Anti-photographic/photocopy imaging process and product made by same | |
| EP0938981A2 | Nonreplicable document and method for making same | |
| US4632430A | Secure and self-verifiable image | |
| US3545853A | Graphic projector |