Buhler AG
121Patents
20Active
121Granted
45Portfolio score
Filing activity: Jan 16, 1975 → Mar 14, 2022 · 12 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5733592A | Method for cleaning and sorting bulk material | Emerging Cross-Sectional Technologies | 83 | Expired |
| US6852256B2 | Process for upgrading plastic material | Emerging Cross-Sectional Technologies | 46 | Expired |
| US7654725B2 | Degassing of flowable masses in a multiple-screw extruder | Performing Operations; Transporting | 45 | Expired |
| US5156867A | Method and apparatus for operating a conching device | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6199780A | Method and apparatus for compacting particulate material | Performing Operations; Transporting | 34 | Expired |
| US5090134A | Method and apparatus for continuously crystallizing polyester material | Performing Operations; Transporting | 32 | Expired |
| US5469994A | Apparatus and method for dosing a particulate phase present in a gas/particle flow from a fluidized bed | Performing Operations; Transporting | 29 | Expired |
| US5379952A | Agitator mill | Performing Operations; Transporting | 27 | Expired |
| US5538162A | Apparatus and method for dosing | Performing Operations; Transporting | 26 | Expired |
| US7193032B2 | Controlling the crystallization of polyesters by means of their water content | Performing Operations; Transporting | 20 | Expired |
| US5685640A | Fly ash dosing method for dosing and device therefor | Performing Operations; Transporting | 20 | Expired |
| USD401248S | Roller mill | General | 19 | Expired |
| US5524746A | Individualizing service for sorting particles of a bulk material | Performing Operations; Transporting | 17 | Expired |
| US5119570A | Method for continuously crystalizing polyester material | Performing Operations; Transporting | 17 | Expired |
| USD400895S | Roller mill | General | 17 | Expired |
| US5593042A | Quality-control sieve and method of using it | Performing Operations; Transporting | 15 | Expired |
| US5699724A | Cleaning and sorting bulk material | Performing Operations; Transporting | 15 | Expired |
| US6136353A | Method of incorporating fatty matter into granulated products | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5505542A | Conching machine with multiple rotors | Human Necessities | 14 | Expired |
| US3970256A | Grinding mill | Performing Operations; Transporting | 13 | Expired |
| US5758707A | Method for heating metallic body to semisolid state | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5353696A | Conching device | Human Necessities | 13 | Expired |
| US6502773B1 | Feed sensor system and method of operation | Performing Operations; Transporting | 12 | Expired |
| US5031845A | Method and device for the grinding and separating of grain | Fixed Constructions | 12 | Expired |
| US5627346A | Plant for continuous mixing and homogenization | Performing Operations; Transporting | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.