KAWADA INDUSTRIES, INC
13Patents
2Active
13Granted
36Portfolio score
Filing activity: Feb 5, 1991 → Aug 6, 2020 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5562414A | Noise reduction device for rotorcraft | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7138200B1 | Fuel cell and separator for the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5170508A | Golf glove | Human Necessities | 8 | Expired |
| US7204147B2 | Ultrasonic inspection method for weld zone | Physics | 7 | Expired |
| US5784739A | Super-long span suspension bridge | Fixed Constructions | 7 | Expired |
| US7980510B2 | Small unmanned aircraft | Performing Operations; Transporting | 6 | Expired |
| US6384594B1 | Revolution speed detecting apparatus for extracting signal corresponding to revolution speed | Physics | 4 | Expired |
| US5539946A | Temporary stiffening girder for suspension bridge | Fixed Constructions | 3 | Expired |
| US7743444B2 | Cable stayed suspension bridge making combined use of one-box and two-box girders | Fixed Constructions | 3 | Expired |
| US7525275B2 | Impact absorbing mechanism of walking robot | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7757991B2 | Helicopter blade vortex interaction noise reducing method and device | Emerging Cross-Sectional Technologies | 2 | Active |
| US7896112B2 | Supplementary support structure for robot | Performing Operations; Transporting | 1 | Expired |
| US12349640B2 | Planting container unit and greening method using same | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.