LIST AG
31Patents
16Active
31Granted
46Portfolio score
Filing activity: Dec 14, 1987 → Jan 20, 2020 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5407266A | Mixing kneader with rotating shafts and kneading bars | Performing Operations; Transporting | 47 | Expired |
| US7036824B2 | Device for the float mounting a sealed housing | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4950081A | Multi-spindle kneading mixer | Performing Operations; Transporting | 24 | Expired |
| US4826324A | Kneader-mixer | Performing Operations; Transporting | 21 | Expired |
| US6039469A | Mixing kneader | Performing Operations; Transporting | 19 | Expired |
| US5147135A | Continuously operating mixing kneader | Performing Operations; Transporting | 17 | Expired |
| US4889431A | Mixing kneader with kneading forks | Performing Operations; Transporting | 17 | Expired |
| US4941130A | Multi-spindle kneading mixer with fixed kneading counterelements | Performing Operations; Transporting | 13 | Expired |
| US4824257A | Kneader-mixer | Performing Operations; Transporting | 12 | Expired |
| US5121992A | Mixing kneader | Performing Operations; Transporting | 10 | Expired |
| US5823674A | Kneader mixer | Performing Operations; Transporting | 7 | Expired |
| US8519093B2 | Process and a device for the continuous treatment of mixed substances | Emerging Cross-Sectional Technologies | 4 | Active |
| US5934801A | Mixing and kneading apparatus | Performing Operations; Transporting | 4 | Expired |
| US8129460B2 | Method and system for producing a spinning solution for producing a polymer fiber | Textiles; Paper | 3 | Active |
| US8376607B2 | Method for the continuous implementation of polymerisation processes | Performing Operations; Transporting | 2 | Active |
| US7045581B2 | Method for carrying out polymerization reactions | Chemistry; Metallurgy | 2 | Expired |
| US9079984B2 | Process for thermal separation of a solution consisting of thermoplastic polymer and solvent | Chemistry; Metallurgy | 2 | Active |
| US5192188A | Lock for the loading and/or discharging of bulk materials | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US9206528B2 | Method and device for the production of molded bodies | Textiles; Paper | 2 | Active |
| US8222355B2 | Process and apparatus for treating viscous products | Performing Operations; Transporting | 1 | Active |
| US7398606B2 | Process for the production of SAP | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9822881B2 | Method and apparatus for handling a product | Performing Operations; Transporting | 1 | Active |
| US7762712B2 | Method for the continuous phase conversion of a product | Emerging Cross-Sectional Technologies | 1 | Active |
| US9480933B2 | Process for thermal separation of a solution | Chemistry; Metallurgy | 0 | Active |
| US10357725B2 | Method for producing moulded articles | Textiles; Paper | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.