Domnick Hunter Limited
20Patents
2Active
20Granted
34Portfolio score
Filing activity: Jan 9, 1992 → Jul 12, 2005 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6409786B1 | Filter assembly | Performing Operations; Transporting | 33 | Expired |
| US6605132B2 | Air treatment system | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6416563B1 | Filter assembly | Performing Operations; Transporting | 28 | Expired |
| US6440201B1 | Filter assembly having end cap with separable flow conduit | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6663685B2 | Filter assembly | Performing Operations; Transporting | 19 | Expired |
| US6461397B1 | Filter assembly | Performing Operations; Transporting | 18 | Expired |
| US6391197B1 | Filter assembly | Performing Operations; Transporting | 18 | Expired |
| US5225073A | Apparatus for separating contaminant from water | Emerging Cross-Sectional Technologies | 13 | Expired |
| USD591414S1 | Gas purifier | General | 12 | Expired |
| US5927084A | Air conditioning system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5196117A | Apparatus for separating oil from an oil/water mixture | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6526674B1 | Gas dryer | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7964010B2 | Coalescing filter element | Performing Operations; Transporting | 5 | Active |
| US6568100B1 | Gas dryer | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US8123916B2 | Apparatus for generating gas by electrolysis of a liquid | Emerging Cross-Sectional Technologies | 3 | Active |
| US6148535A | Gas dryer | Performing Operations; Transporting | 3 | Expired |
| US7655077B2 | Air treatment system | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6344070B1 | Selective adsorption of components of a gas mixture | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7638021B2 | Apparatus for generating gas by electrolysis of a liquid | Chemistry; Metallurgy | 2 | Expired |
| US7264660B2 | Apparatus for drying a gas | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.