Bernard A. Matthys
19Patents
14h-index
24Co-inventors
78Inventor score
Filing activity: Jun 2, 1980 → Aug 21, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5772883A | Slanted inline filter | Emerging Cross-Sectional Technologies | 309 | Expired |
| US5792247A | Integrated resonator and filter apparatus | Emerging Cross-Sectional Technologies | 288 | Expired |
| US5895574A | Rolled liquid filter using fluted media | Performing Operations; Transporting | 284 | Expired |
| USD425189S | Combined filter element and frame therefor | General | 250 | Expired |
| USD398046S | Combined filter element and frame therefor | General | 233 | Expired |
| US7329326B2 | Method of making a fluted filter media for air filter | Emerging Cross-Sectional Technologies | 111 | Expired |
| US6048386A | Integrated resonator and filter apparatus | Emerging Cross-Sectional Technologies | 107 | Expired |
| US4504293A | Self-cleaning air filter | Performing Operations; Transporting | 66 | Expired |
| US6752924B2 | Bowl-cartridge filter having interlock mechanism and methods | Performing Operations; Transporting | 54 | Expired |
| USD470216S1 | Filter element | General | 51 | Expired |
| US4266953A | Mechanism for removing dust particles from an engine air cleaner | Performing Operations; Transporting | 24 | Expired |
| US8460442B2 | Fluted filter media | Emerging Cross-Sectional Technologies | 23 | Active |
| US4406651A | Multi-phase self purging centrifuge | Performing Operations; Transporting | 18 | Expired |
| US8268053B2 | Fluted filter media | Emerging Cross-Sectional Technologies | 18 | Active |
| US6604486B1 | Restriction indicator | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6009898A | Valve assembly for preventing liquid ingestion and methods | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6209559A | Valve assembly for preventing liquid ingestion and methods | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6976448B2 | Restriction indicator | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6213146A | Valve assembly for preventing liquid ingestion and methods | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.