Greenmaster Industrial Corp.
47Patents
0Active
47Granted
34Portfolio score
Filing activity: Mar 5, 1991 → Mar 27, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5362296A | Chair mounting exercising unit | Human Necessities | 80 | Expired |
| US5094447A | Structure of stationary bicycle magnetic retarding field | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5356357A | Riding exerciser | Human Necessities | 70 | Expired |
| US5989161A | Vibration absorbing structure for treadmill | Human Necessities | 57 | Expired |
| USD372284S | Exercise bike | General | 51 | Expired |
| US5569138A | Multi-purpose exercising apparatus | Human Necessities | 50 | Expired |
| USD380796S | Exercise bike | General | 50 | Expired |
| US5300005A | Structure of abdomen exerciser | Human Necessities | 38 | Expired |
| US5484358A | Automatic magnetic controller for magnetic tension by setting wattage | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5387169A | Horizontal stepper | Human Necessities | 36 | Expired |
| US5573482A | Exercising apparatus | Human Necessities | 36 | Expired |
| US5616105A | Rowing machine | Human Necessities | 31 | Expired |
| USD369843S | Exercise treadmill | General | 28 | Expired |
| US5984838A | Treadmill with a preferred frame | Human Necessities | 28 | Expired |
| US5183448A | Foot training machine | Human Necessities | 26 | Expired |
| US5830112A | Foldable jogging simulator | Human Necessities | 25 | Expired |
| US5338271A | Exerciser device for simulating mountain climbing and running | Human Necessities | 23 | Expired |
| USD414518S | Exercise treadmill | General | 22 | Expired |
| US5344371A | Exerciser for simulating mountain climbing and running movements | Human Necessities | 20 | Expired |
| US5324246A | Multi-purpose physical exercising machine | Human Necessities | 17 | Expired |
| US5591111A | Sit-up exercise apparatus | Human Necessities | 16 | Expired |
| USD358437S | Riding exerciser | General | 15 | Expired |
| US5569130A | Rowing machine | Human Necessities | 14 | Expired |
| USD358624S | Stepping exerciser with a seat | General | 13 | Expired |
| USD384380S | Gymnastic bike | General | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.