YAMAZAKI CO., LTD.
12Patents
4Active
12Granted
34Portfolio score
Filing activity: Dec 4, 1984 → Nov 24, 2014 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4809387A | Mop with squeezer | Human Necessities | 20 | Expired |
| US4644825A | Indexing and positioning device | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6845538B2 | Cleaning implement | Human Necessities | 14 | Expired |
| US4823422A | Floor sweeper | Human Necessities | 12 | Expired |
| USD308741S | Combined mop handle and mop holder | General | 11 | Expired |
| USD311077S | Combined mop and wringer | General | 10 | Expired |
| USD758215S1 | Measuring cup | General | 9 | Active |
| US4811446A | Mop holder | Human Necessities | 1 | Expired |
| US8135030B2 | Method and apparatus for interfacing synchronous core network with asynchronous radio network | Electricity | 1 | Active |
| USD321961S | Floor cleaner | General | 1 | Expired |
| USRE44243E1 | Method for separating and processing signal and bearer in all IP radio access network | General | 0 | Active |
| US8687651B2 | Method and apparatus for interfacing synchronous core network with asynchronous radio network | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.