Description
Class D21G : CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
Subclass 3/04: Doctors for drying cylinders
D21G 3/04
Sub-Class
Stats
- 24 US PATENTS IN FORCE
- 3 US APPLICATIONS PENDING
- 9 Total Patent Owners
- 121 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12220893 | Crepe blade | Aug 28, 20 | Feb 11, 25 | CLOUTH SPRENGER GMBH |
| 12128647 | Blade and creping arrangement | Jul 26, 22 | Oct 29, 24 | Voith Patent GmbH |
| 11834790 | Systems and methods for providing doctor blade holders with vibration mitigation | Apr 15, 22 | Dec 05, 23 | KADANT INC. |
| 11041271 | Deposit detection in a paper making system via vibration analysis | Oct 24, 18 | Jun 22, 21 | Ecolab USA Inc. |
| 10883225 | Doctor blade holder for cylinders, and system comprising a cylinder and a doctor blade holder | May 02, 18 | Jan 05, 21 | ORADOC S.R.L. |
| 10633795 | Rigid and flexible doctor blade holder and system comprising a cylinder and a doctor blade holder | May 02, 18 | Apr 28, 20 | ORADOC S.R.L. |
| 10604896 | Method for early warning chatter detection and asset protection management | Aug 01, 16 | Mar 31, 20 | Ecolab USA Inc. |
| 10465342 | Hinge/taper clamp rod holder insert | Dec 18, 17 | Nov 05, 19 | BUSCHMAN CORPORATION |
| 10202724 | Doctor control systems for papermaking machines and related methods | Dec 09, 17 | Feb 12, 19 | GPCP IP Holdings LLC |
| 10190258 | Doctor blade holders and doctor blade holder systems including planar elements with three dimensional fabric reinforcement materials | Aug 15, 16 | Jan 29, 19 | KADANT INC. |
| 10125455 | Long life cermet coated creping blade | Dec 10, 15 | Nov 13, 18 | VOESTALPINE PRECISION STRIP AB |
| 9896802 | Creping blade and method for its manufacturing | Jan 17, 15 | Feb 20, 18 | VOESTALPINE PRECISION STRIP AB |
| 9873981 | Doctor control systems for papermaking machines and related methods | Jul 14, 16 | Jan 23, 18 | GPCP IP HOLDINGS LLC |
| 9869061 | Hinge/taper clamp rod holder insert | Aug 07, 13 | Jan 16, 18 | Buschman Corporation |
| 9546448 | Doctor apparatus and blade holder | Sep 08, 15 | Jan 17, 17 | VALMET TECHNOLOGIES, INC., VASLMET TECHNOLOGIES, INC., |
| 9518359 | Doctor blade holder systems | Nov 06, 14 | Dec 13, 16 | KADANT INC. |
| 9506192 | Systems and methods for doctor blade load and vibration measurement as well as blade vibration mitigation | Apr 28, 14 | Nov 29, 16 | KADANT INC. |
| 8070916 | Device for producing a web of tissue | Jun 09, 04 | Dec 06, 11 | VOITH PATENT GMBH |
| 7713384 | Device for detachably fixing a holder for a doctor blade in a paper production plant | Jan 24, 07 | May 11, 10 | Not available |
| 7691236 | Creping blade with a highly smooth bevel surface | Jul 26, 06 | Apr 06, 10 | The Procter & Gamble Company |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0084,513 | TISSUE PAPER AND METHOD FOR MANUFACTURING TISSUE PAPER | Mar 28, 22 | Mar 14, 24 | Not available |
| 2018/0320,314 | RIGID AND FLEXIBLE DOCTOR BLADE HOLDER AND SYSTEM COMPRISING A CYLINDER AND A DOCTOR BLADE HOLDER | May 02, 18 | Nov 08, 18 | Not available |
| 2018/0320,315 | DOCTOR BLADE HOLDER FOR CYLINDERS, AND SYSTEM COMPRISING A CYLINDER AND A DOCTOR BLADE HOLDER | May 02, 18 | Nov 08, 18 | Not available |
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
- 29 Months (last 2 years Issuances)
- 29 Months (last 5 years Issuances)