CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES
25Patents
8Active
25Granted
39Portfolio score
Filing activity: Apr 2, 1974 → Apr 9, 2021 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4983256A | Method for the manufacture of a paper pulp for currency use | Textiles; Paper | 47 | Expired |
| US4035147A | Cellulosic materials capable of absorbing water of aqueous solutions, and their production | Textiles; Paper | 46 | Expired |
| US4374703A | Control system for papermaking machine headbox | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4865690A | Process and plant for recycling waste printed papers | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4978861A | Device for the continuous determination of a surface state index for a moving creped sheet | Physics | 15 | Expired |
| US4443331A | Process and device for separating particles in a fluid especially for the cleaning of the suspensions handled in the paper industry | Performing Operations; Transporting | 14 | Expired |
| US5401360A | Method for de-inking printed paper | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4331713A | Process and apparatus for the continuous coating of a sheet article, particularly a web of paper or paperboard | Performing Operations; Transporting | 11 | Expired |
| US5131544A | Device for selectively separating particles in a liquid, in particular for cleaning fibrous paper suspensing | Textiles; Paper | 10 | Expired |
| US4779215A | Method and device for measuring by correlation, in real time, the delays between matching electrical signals | Physics | 9 | Expired |
| US6010593A | Process for regulating a paper pulp deinking line and device for continuously measuring the quantity of particles contained in a liquid | Emerging Cross-Sectional Technologies | 7 | Expired |
| US3959570A | Application of precipitates of methylene ureas and products obtained | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5589941A | Device for the measurement of a profile on a plane surface | Physics | 4 | Expired |
| US4788442A | Device for detecting incipient tears on a sheet during manufacture | Physics | 4 | Expired |
| US4707223A | Apparatus for measuring the state of formation of a sheet of paper | Physics | 3 | Expired |
| US9065180B2 | Surface for filtering a plurality of frequency bands | Electricity | 2 | Active |
| US4477359A | Process for fractionating solid particles suspended in a liquid, in particular for treating paper-industry fiber suspensions | Textiles; Paper | 1 | Expired |
| US4518499A | Apparatus for fractionating solid particles suspended in a liquid | Textiles; Paper | 1 | Expired |
| US9868874B2 | Sympathetic printed-matter and method of producing the same | Chemistry; Metallurgy | 0 | Active |
| US11384480B2 | Method for bleaching paper pulp | Textiles; Paper | 0 | Active |
| US12220684B2 | Eco-friendly sorbent material for removing oil | Emerging Cross-Sectional Technologies | 0 | Active |
| US10741928B2 | Method for increasing the transmission of radiofrequency electromagnetic waves through thermally insulating glass sheets | Electricity | 0 | Active |
| US11566377B2 | Binder composition based on plant fibers and mineral fillers, preparation and use thereof | Textiles; Paper | 0 | Active |
| US10975523B1 | Binder composition based on plant fibers and mineral fillers, preparation and use thereof | Textiles; Paper | 0 | Active |
| US8945347B2 | Method for mechanical pulp production | Textiles; Paper | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.