KOP-Flex Inc.
14Patents
3Active
14Granted
33Portfolio score
Filing activity: Mar 26, 1990 → Jun 18, 2008 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5450761A | Torque meter | Physics | 18 | Expired |
| US5969269A | Flexible coupling with torque measuring and detecting device | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6685570B2 | Plate adapter for flexible half couplings | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5000722A | Coupling member for rotatable shafts | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5163876A | Method of constructing a composite flexible coupling element | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7665373B2 | Torque measuring device with redundant torque transmission paths and fail-safe mechanism | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US7682256B2 | Flange design for filament wound composite shaft | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US5286231A | Flexible elastomer coupling element | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5588917A | Coupling with dual torque transmission paths | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5393267A | Adjustable coupled drive shaft with a restraining ring | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6026700A | Tooth form parameters for ground teeth of gear spindle coupling and method of making the same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7963853B2 | Filament wound composite shaft | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US6508714B1 | Split spool type flexible coupling | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6273824A | Flexible diaphragm shaft coupling assembly | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.