OPCOM INC.
22Patents
4Active
22Granted
35Portfolio score
Filing activity: May 6, 1985 → May 21, 2020
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4783796A | PBX telephone call control system | Electricity | 98 | Expired |
| US4747124A | PBX telephone call control system | Electricity | 98 | Expired |
| USD419704S | Pen-type laser pointer | General | 61 | Expired |
| US5842282A | Laser angle adjustment device for laser measuring instruments | Emerging Cross-Sectional Technologies | 49 | Expired |
| USD483784S1 | Combined digital camera and writing implement | General | 47 | Expired |
| USD403451S | Laser pointer | General | 37 | Expired |
| USD429831S | Laser pointer | General | 30 | Expired |
| US4792967A | PBX DID and E and M tie trunk integration adapter and method | Electricity | 23 | Expired |
| USD429830S | Flashlight-type laser pointer | General | 23 | Expired |
| USD403450S | Laser pointer | General | 21 | Expired |
| USD400921S | Combined writing instrument and laser pointer | General | 20 | Expired |
| US6665455B1 | Structure of an image-sensing module | Electricity | 18 | Expired |
| US5914768A | Eyeglass frame having metal-and-string rims | Physics | 13 | Expired |
| US6222459A | Method of word screen formation by laser light projection and the structure for the same | Physics | 12 | Expired |
| US6178297A | Camera with laser view framing function | Electricity | 11 | Expired |
| USD421658S | Circular laser pointer | General | 7 | Expired |
| USD425089S | Digital camera | General | 3 | Expired |
| US6102553A | Palm-size projector light with annular lens and rotatable adjustment ring for changing patterns of emitted light | Physics | 3 | Expired |
| US10918268B2 | Insert tube and endoscope using the same | Human Necessities | 0 | Active |
| US11234582B2 | Endoscope system | Human Necessities | 0 | Active |
| US11503989B2 | Multi-channel system | Human Necessities | 0 | Active |
| US10653305B2 | Image processing system and endoscope using the same | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.