Johan Wennerström
18Patents
9h-index
5Co-inventors
65Inventor score
Filing activity: Oct 28, 1999 → Jul 6, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6790259B2 | Method and device for cleaning a gaseous fluid using a conductive grid between charging head and filter | Performing Operations; Transporting | 26 | Expired |
| USD580539S1 | Air purifier | General | 24 | Expired |
| USD797914S1 | Air cleaner in various heights | General | 19 | Active |
| US9694369B2 | Air purifier device with ionizing means | Emerging Cross-Sectional Technologies | 17 | Active |
| US9919252B2 | Air purifier device with coupling mechanism | Mechanical Engineering; Lighting; Heating | 13 | Active |
| US6364935B1 | Method and device for cleaning of a gaseous fluid | Emerging Cross-Sectional Technologies | 12 | Expired |
| USD549314S1 | Air filter cartridge | General | 11 | Expired |
| US6540804B1 | Air cleaner | Emerging Cross-Sectional Technologies | 10 | Expired |
| USD591412S1 | Air purifier | General | 9 | Expired |
| US7323104B2 | Water filtering device | Chemistry; Metallurgy | 9 | Expired |
| US11578885B2 | Air treatment device for a ventilation air inlet | Emerging Cross-Sectional Technologies | 5 | Active |
| US9636617B2 | Air purifier device with fan duct | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9919587B2 | Vehicle with ionizing unit for cleaning air to cabin | Emerging Cross-Sectional Technologies | 3 | Active |
| US10099225B2 | Air cleaning device | Emerging Cross-Sectional Technologies | 3 | Active |
| US11690460B2 | Air purification tent | Mechanical Engineering; Lighting; Heating | 1 | Active |
| USD591413S1 | Air purifier | General | 1 | Expired |
| US12246971B2 | Multipass water filter | Chemistry; Metallurgy | 0 | Active |
| US12313279B2 | Air purifier | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.