Fleetguard, Inc.
184Patents
21Active
184Granted
44Portfolio score
Filing activity: Dec 21, 1978 → May 20, 2008 · 21 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6449947B1 | Low pressure injection and turbulent mixing in selective catalytic reduction system | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5556542A | Fluid filter assembly | Mechanical Engineering; Lighting; Heating | 127 | Expired |
| US6238554A | Fuel filter including slow release additive | Mechanical Engineering; Lighting; Heating | 111 | Expired |
| US6902598B2 | Filter with efficiently sealed end | Performing Operations; Transporting | 106 | Expired |
| US5556440A | Pressure-actuated radial air filter seal | Performing Operations; Transporting | 105 | Expired |
| US7258719B2 | Filter and forming system | Emerging Cross-Sectional Technologies | 95 | Expired |
| US5662799A | Slow release coolant filter | Mechanical Engineering; Lighting; Heating | 95 | Expired |
| US5362390A | Shut-off valve for spin-on filters | Emerging Cross-Sectional Technologies | 93 | Expired |
| US5753117A | Replaceable filter element and snap-on filter lid assembly | Performing Operations; Transporting | 92 | Expired |
| US7097694B1 | High performance, high efficiency filter | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5171430A | Plastic filter | Emerging Cross-Sectional Technologies | 90 | Expired |
| US6860241B2 | Fuel filter including slow release additive | Emerging Cross-Sectional Technologies | 89 | Expired |
| USRE37369E | Slow release coolant filter | General | 88 | Expired |
| US6722123B2 | Exhaust aftertreatment device, including chemical mixing and acoustic effects | Emerging Cross-Sectional Technologies | 84 | Expired |
| US7247183B2 | Panel filter with gasket seal | Performing Operations; Transporting | 82 | Expired |
| US6827750B2 | Controlled release additives in fuel systems | Mechanical Engineering; Lighting; Heating | 81 | Expired |
| US7754123B2 | High performance filter media with internal nanofiber structure and manufacturing methodology | Emerging Cross-Sectional Technologies | 78 | Active |
| US5846417A | Self closing filter centerpost | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US7156991B2 | Liquid additive slow-release apparatus driven by a filter pressure gradient | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US5258118A | Reusable fluid filter | Emerging Cross-Sectional Technologies | 75 | Expired |
| US6139595A | Air/oil coalescer with centrifugally assisted drainage | Mechanical Engineering; Lighting; Heating | 74 | Expired |
| US6601385B2 | Impactor for selective catalytic reduction system | Emerging Cross-Sectional Technologies | 73 | Expired |
| US7153422B2 | Liquid additive slow-release apparatus driven by a filter pressure gradient | Mechanical Engineering; Lighting; Heating | 71 | Expired |
| US7413588B2 | High efficiency, low restriction, cost effective filter | Emerging Cross-Sectional Technologies | 70 | Expired |
| US6640792B2 | Air/oil coalescer with an improved centrifugally assisted drainage | Mechanical Engineering; Lighting; Heating | 69 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.