HGM CO., LTD.
11Patents
1Active
11Granted
31Portfolio score
Filing activity: Oct 15, 1982 → Feb 1, 2016
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4537193A | Laser endocoagulator apparatus | Human Necessities | 85 | Expired |
| US4519390A | Fiber optic laser catheter | Human Necessities | 51 | Expired |
| USD393715S | Optical fiber handpiece | General | 43 | Expired |
| US4633872A | Laser optical delivery apparatus | Physics | 40 | Expired |
| US4517974A | Disposable hand piece for surgical lasers | Human Necessities | 29 | Expired |
| US4526170A | Detachable laser optical fiber assembly and method of adjustment | Human Necessities | 27 | Expired |
| USD286280S | Housing for connecting a medical argon laser to a laser probe | General | 13 | Expired |
| USD288435S | Laser cabinet | General | 9 | Expired |
| US4549787A | Optical shutter | Physics | 7 | Expired |
| USD285377S | Cart | General | 2 | Expired |
| US10410550B2 | Local light-emitting road sign board apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.