Durango Systems, Inc.
9Patents
0Active
9Granted
25Portfolio score
Filing activity: Sep 20, 1978 → May 21, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4256928A | Telephone call diverting and answering system | Electricity | 23 | Expired |
| US4388006A | Printing ribbon cartridge | Performing Operations; Transporting | 20 | Expired |
| US4227821A | Web drive mechanism for line/series printers | Performing Operations; Transporting | 13 | Expired |
| US4222673A | Print head carriage assembly for serial printers | Performing Operations; Transporting | 12 | Expired |
| US4417825A | Print drive medium for line/series printers | Performing Operations; Transporting | 12 | Expired |
| USD256796S | Desktop data processing system | General | 8 | Expired |
| US4188148A | Fastener assembly | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4498794A | Printer feeder | Performing Operations; Transporting | 5 | Expired |
| US4187552A | Read only memory character generator system | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.