Hitachi Plant Technologies, Ltd.
136Patents
116Active
136Granted
57Portfolio score
Filing activity: Feb 23, 2000 → Aug 7, 2012 · 101 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD657473S1 | Reagent container | General | 57 | Expired |
| US7855890B2 | Cooling system for electronic equipment | Mechanical Engineering; Lighting; Heating | 51 | Active |
| US7854587B2 | Centrifugal compressor and dry gas seal system for use in it | Mechanical Engineering; Lighting; Heating | 33 | Active |
| US8199504B2 | Cooling system for electronic equipment | Mechanical Engineering; Lighting; Heating | 28 | Active |
| US7880620B2 | RFID tag and construction site management system and management method using the same | Physics | 27 | Active |
| USD651280S1 | Immersion flat filter membrane element | General | 26 | Expired |
| USD659254S1 | Sample collector | General | 23 | Expired |
| US7465215B2 | Sponge blasting apparatus and sponge blasting method | Emerging Cross-Sectional Technologies | 21 | Active |
| US8164902B2 | Electronic apparatus | Electricity | 15 | Active |
| US8333936B2 | Reagent splitting/dispensing method based on reagent dispensing nozzle and reagent splitting/dispensing mechanism | Emerging Cross-Sectional Technologies | 15 | Active |
| US7575679B2 | Process and equipment for treating ammonium containing liquid | Emerging Cross-Sectional Technologies | 13 | Active |
| USD654935S1 | Inkjet coater | General | 12 | Expired |
| US7601317B2 | Process for disposing waste gas comprising sulfur oxides and apparatus thereof | Emerging Cross-Sectional Technologies | 11 | Active |
| US8010999B2 | Cable installation support and management system | Electricity | 11 | Active |
| US7794590B2 | Entrapping immobilization pellets for purifying breeding water, process and apparatus for purifying breeding water, and aquarium set | Emerging Cross-Sectional Technologies | 10 | Active |
| US7182671B1 | Blasting apparatus and blasting method | Emerging Cross-Sectional Technologies | 10 | Active |
| US7318039B2 | Project risk management system utilizing probability distributions | Physics | 9 | Expired |
| USD643915S1 | Collecting device for substances floating in air | General | 9 | Expired |
| US8616843B2 | Turbo machinery | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US8287236B2 | Multistage centrifugal compressor | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US7389922B2 | System and method for managing materials | Physics | 7 | Active |
| US8293109B2 | Wastewater treatment method | Emerging Cross-Sectional Technologies | 7 | Active |
| US7816110B2 | Process for producing pellets containing entrapped microorganisms | Emerging Cross-Sectional Technologies | 6 | Active |
| US7842185B2 | Pellets comprising sludge containing nitrifying bacteria for treating wastewater | Emerging Cross-Sectional Technologies | 6 | Active |
| US7537698B2 | Process and equipment for treating ammonium containing liquid | Emerging Cross-Sectional Technologies | 6 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.