Hakugen Co., Ltd.
4Patents
0Active
4Granted
26Portfolio score
Filing activity: Feb 18, 1983 → Sep 5, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4476171A | Fragrance releasing articles | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5891811A | Indicator material | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4590111A | Fragrance releasing sheet article and method of making same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6653355B1 | Treating agent for oil | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.