Cotron Corporation
65Patents
43Active
65Granted
48Portfolio score
Filing activity: Jan 24, 1989 → Mar 9, 2021 · 29 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD711356S1 | Earphone | General | 197 | Active |
| US5984224A | Cable-spooling casing for earphones | Performing Operations; Transporting | 139 | Expired |
| USD718286S1 | Earphone | General | 132 | Active |
| US6427018B1 | Adjustable earphones for personal audio and communication systems | Electricity | 121 | Expired |
| USD519108S1 | Earphone | General | 114 | Expired |
| USD707200S1 | Headphone | General | 105 | Active |
| USD517054S1 | Blue tooth headset | General | 91 | Expired |
| USD512049S1 | Earphone | General | 91 | Expired |
| USD719550S1 | Earphone | General | 80 | Active |
| USD572242S1 | Earphone | General | 76 | Expired |
| USD676427S1 | Earphone | General | 76 | Active |
| US8908899B1 | Earphone | Electricity | 75 | Active |
| USD711858S1 | Earphone | General | 66 | Active |
| US6097827A | Adjustable earphone with a microphone | Electricity | 61 | Expired |
| US5729615A | In-ear type earphone having an ear hanger | Electricity | 59 | Expired |
| USD711348S1 | Headphone | General | 56 | Active |
| USD706242S1 | Headphone | General | 45 | Active |
| USD710334S1 | Earphone | General | 42 | Active |
| USD716272S1 | Earphone | General | 37 | Active |
| USD605636S1 | Earphone | General | 37 | Expired |
| USD519107S1 | Earphone | General | 32 | Expired |
| US6198821A | Earphone-microphone adapter | Electricity | 32 | Expired |
| USD707660S1 | Earphone | General | 31 | Active |
| USD719551S1 | Earphone | General | 29 | Active |
| USD710335S1 | Earphone | General | 26 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.