COSMO INSTRUMENTS CO., LTD.
9Patents
4Active
9Granted
41Portfolio score
Filing activity: Jun 27, 1986 → Jul 1, 2021 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6182501A | Leak test method and apparatus | Physics | 41 | Expired |
| US4729244A | Flow rate measuring apparatus | Physics | 10 | Expired |
| US4875932A | Apparatus for measuring a flow rate | Physics | 6 | Expired |
| US5013006A | Micro-leakage regulating valve | Physics | 5 | Expired |
| US7818133B2 | Leak inspection method and leak inspector | Physics | 4 | Active |
| US7805259B2 | Method for detecting an operation malfunction of a leakage inspector, and a leakage inspector having a function to detect an operation malfunction thereof | Physics | 3 | Active |
| US6827327B2 | Flow resistance setting nozzle | Physics | 0 | Expired |
| US11719596B2 | Gas leak sensing device, setting method for gas leak sensing, gas leak sensing method, and tangible medium | Physics | 0 | Active |
| US11773988B2 | Flow resistor, flow rate control device, and flow rate control method | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.