Description
Class D21F : PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
Subclass 1/34: Wet end of machines for making continuous webs of paper Construction or arrangement of spraying pipes
D21F 1/34
Sub-Class
Stats
- 5 US PATENTS IN FORCE
- 5 US APPLICATIONS PENDING
- 2 Total Patent Owners
- 27 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11377794 | Pulp washer mist eliminator and foam remover system | Jun 18, 19 | Jul 05, 22 | Not available |
| 11319669 | Lubricating device for lubricating a clothing | Sep 15, 17 | May 03, 22 | Voith Patent GmbH |
| 10753045 | Systems and methods for providing force vector compensated fan nozzles | Jun 28, 18 | Aug 25, 20 | KADANT INC. |
| 9115469 | Nozzle arrangement | May 02, 11 | Aug 25, 15 | PAPIERMASCHINEN-SYSTEMTECHNIK GMBH |
| 8777124 | Irrigation sprinkler with ratcheting manual nozzle rotation | Apr 29, 11 | Jul 15, 14 | HUNTER INDUSTRIES, INC. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0426,053 | SHEET MANUFACTURING APPARATUS | Jun 21, 24 | Dec 26, 24 | Not available |
| 2024/0392,504 | SHEET MANUFACTURING APPARATUS AND SHEET MANUFACTURING METHOD | May 24, 24 | Nov 28, 24 | Not available |
| 2024/0052,568 | SHEET MANUFACTURING APPARATUS | Aug 08, 23 | Feb 15, 24 | Not available |
| 2022/0282,426 | CLEANING DEVICE FOR A SUCTION ROLLER AND METHOD FOR CLEANING A SUCTION ROLLER | May 19, 20 | Sep 08, 22 | Not available |
| 2021/0238,803 | Pulp Washer Mist Eliminator and Foam Remover System | Jun 18, 19 | Aug 05, 21 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 27 Months (last 2 years Issuances)
- 27 Months (last 5 years Issuances)