protoCAD Corp.
10Patents
3Active
10Granted
36Portfolio score
Filing activity: Apr 16, 1985 → Oct 23, 2014 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4964948A | Printed circuit board through hole technique | Emerging Cross-Sectional Technologies | 142 | Expired |
| US4828654A | Variable size segmented anode array for electroplating | Electricity | 103 | Expired |
| US4911796A | Plated through-holes in a printed circuit board | Electricity | 70 | Expired |
| US4720798A | Process for use in rapidly producing printed circuit boards using a computer controlled plotter | Emerging Cross-Sectional Technologies | 39 | Expired |
| USD726835S1 | Toy rollercoaster track section | General | 16 | Active |
| USD717887S1 | Toy rollercoaster track section | General | 14 | Active |
| US4654956A | Drill apparatus for use with computer controlled plotter | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4823277A | Forming plated through holes in a printed circuit board by using a computer controlled plotter | Electricity | 6 | Expired |
| US4654517A | Optical sight for computer controlled plotter with improved locating capability | Physics | 4 | Expired |
| USD718395S1 | Toy rollercoaster track section | General | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.