D21F 1/06

Sub-Class

Watch

Stats

Description

Class  D21F : PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON


Subclass 1/06: Wet end of machines for making continuous webs of paper Regulating pulp flow

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12146264 Paper products having increased bending stiffness and cross-direction strength and methods for making the sameSep 12, 22Nov 19, 24International Paper Company
12000088 Papermaking machine with press sectionJul 25, 22Jun 04, 24STRUCTURED I, LLC
11661702 Fiber transport apparatus and fiber transport methodJun 16, 20May 30, 23SEIKO EPSON CORPORATION
11441268 Paper products having increased bending stiffness and cross-direction strength and methods for making the sameJan 04, 19Sep 13, 22International Paper Company
9708762 Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of suchJul 13, 16Jul 18, 17SULZER MANAGEMENT AG
9534345 Sampling assembly and methodDec 09, 14Jan 03, 17Not available
9416491 Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of suchJan 02, 14Aug 16, 16SULZER MANAGEMENT AG
8986505 Sheet manufacturing apparatusMar 24, 14Mar 24, 15SEIKO EPSON CORPORATION
8529733 Twin fabric forming section with multiple drainage shoesOct 21, 09Sep 10, 13ASTENJOHNSON, INC.
8448789 Apparatus for washing and dewatering pulpDec 11, 08May 28, 13VALMET TECHNOLOGIES, INC.
8262860 Paper pulp pre-processorAug 24, 07Sep 11, 12WISYS TECHNOLOGY FOUNDATION, INC.
8123909 Apparatus for treating papermaking feedstockNov 02, 06Feb 28, 12NIPPON PAPER INDUSTRIES CO., LTD.
8126583 Method for supplying a chemical or chemical compound in a fibrous web machine and an apparatus for implementing the methodDec 29, 06Feb 28, 12VALMET TECHNOLOGIES, INC.
7955474 Tube bank apparatus for distributing stockDec 11, 08Jun 07, 11PAPERCHINE INC.
7897016 Headbox apparatus for a papermaking machineJan 31, 08Mar 01, 11PAPERCHINE INC.
7794570 Headbox apparatus for a papermaking machineDec 19, 06Sep 14, 10PAPERCHINE INC.
7578905 Method and apparatus for transverse distribution of a flowing mediumJan 13, 05Aug 25, 09VALMET TECHNOLOGIES, INC.
7578906 Headbox and stock delivery system for a papermaking machineFeb 01, 07Aug 25, 09ASTENJOHNSON, INC.
7318883 Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilution of fresh stockDec 05, 00Jan 15, 08VALMET TECHNOLOGIES, INC.
6730193 Wire pitFeb 15, 02May 04, 04ANDRITZ-AHLSTROM OY, ANDRITZ OY,

more results

Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2023/0383,463 SHEET MANUFACTURING APPARATUSMay 24, 23Nov 30, 23Not available
2023/0383,462 SHEET MANUFACTURING APPARATUSMay 24, 23Nov 30, 23Not available

more results

Top Owners in This Subclass

Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More

Patents Issued To Date - By Filing Year

Average Time to Issuance