H-D Tech Inc.
8Patents
0Active
8Granted
26Portfolio score
Filing activity: Sep 19, 1985 → Sep 20, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4927509A | Bipolar electrolyzer | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5316629A | Process for maintaining electrolyte flow rate through a microporous diaphragm during electrochemical production of hydrogen peroxide | Chemistry; Metallurgy | 14 | Expired |
| US4969981A | Cell and method of operating a liquid-gas electrochemical cell | Chemistry; Metallurgy | 14 | Expired |
| US4921587A | Porous diaphragm for electrochemical cell | Chemistry; Metallurgy | 11 | Expired |
| US4891107A | Porous diaphragm for electrochemical cell | Chemistry; Metallurgy | 9 | Expired |
| US4872957A | Electrochemical cell having dual purpose electrode | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5244547A | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions | Chemistry; Metallurgy | 5 | Expired |
| US5106464A | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.