| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | Japan | 4 | |
| #3 | Canada | 3 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Electric digital data processing | |
| #2 | Casings and printed circuits |
| # | Name | Total Patents |
|---|---|---|
| #1 | Widdoes L Curtis Jr | 3 |
| #2 | Eru Kaateisu Uidoozu Jiyunia | 3 |
| #3 | Widdoes Curtis L Jr | 2 |
| #4 | Sliwkowski Joseph | 1 |
| #5 | Widdoes Curtis Jr | 1 |
| #6 | Fisher Robert | 1 |
| #7 | Widdoes Jr L Curtis | 1 |
| #8 | Widdoes Lawrence Curtis | 1 |
| #9 | Roorensu Kaateisu Uidoozu Jiyu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0290254A2 | Computer aided printed circuit board wiring | |
| EP0153445A2 | Method for simulating system operation of static and dynamic circuit devices | |
| EP0150260A2 | Method for sensing and simulating digital logic states | |
| CA1212770A | Method for propagating unknown digital values in a hardware based complex circuit simulation system | |
| US4590581A | Method and apparatus for modeling systems of complex circuits |