Description
Class C14C : CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
Subclass 3/28: Tanning; Compositions for tanning Chemical tanning Multi-step processes
C14C 3/28
Sub-Class
Stats
- 24 US PATENTS IN FORCE
- 4 US APPLICATIONS PENDING
- 10 Total Patent Owners
- 114 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12252752 | Process for tanning leathers, pre-tanning products and use thereof | Mar 10, 22 | Mar 18, 25 | Silvateam S.P.A. |
| 12163197 | Method of manufacturing leather | Dec 24, 20 | Dec 10, 24 | Midori Auto Leather Co., Ltd.; TOYOTA JIDOSBA KABUSHIKI KAISHA.; |
| 12129524 | Chrome-free tanning process of ecological leather | May 11, 22 | Oct 29, 24 | Sichuan University |
| 11873536 | Environmentally friendly process for tanning hides | Jul 20, 21 | Jan 16, 24 | BEKEN ITALIA S.R.L. |
| 11732316 | Leather tanning method using chrome-free and formaldehyde-free adhesive | Jan 09, 22 | Aug 22, 23 | Fujian Agriculture and Forestry University |
| 11473156 | Chrome-free leather retanning | Dec 18, 15 | Oct 18, 22 | Rohm and Haas Company |
| 11365457 | Lionfish leather and preparation thereof | Aug 09, 21 | Jun 21, 22 | Quintessence Marine Inc. |
| 11041219 | Methods for tanning animal skins | Jul 13, 16 | Jun 22, 21 | Not available |
| 11040890 | Tannery process with effluent recycling | Dec 09, 19 | Jun 22, 21 | Not available |
| 10870896 | Solid, particulate tanning agent preparations | Mar 29, 12 | Dec 22, 20 | LANXESS Deutschland GmbH |
| 10745769 | Method for treating a substrate made of animal fibers with solid particles and a chemical formulation | Apr 11, 14 | Aug 18, 20 | Xeros Limited |
| 10501336 | Tannery process with effluent recycling | Oct 02, 17 | Dec 10, 19 | Not available |
| 10301691 | Method for treating an animal substrate | Oct 01, 15 | May 28, 19 | Xeros Limited |
| 10260115 | Leather production using waste liquids | Nov 09, 16 | Apr 16, 19 | Not available |
| 10087497 | Process for retanning leather | Jul 25, 14 | Oct 02, 18 | TFL Ledertechnik GmbH |
| 9970070 | Chrome-free leather retanning | Oct 15, 14 | May 15, 18 | Rohm and Haas Company |
| 9845516 | Method for treating a substrate made of animal fibers with solid particles and a chemical formulation comprising a colourant | Apr 11, 14 | Dec 19, 17 | XEROS LIMITED |
| 9776887 | Tannery process with effluent recycling | Mar 20, 14 | Oct 03, 17 | Zhang, Zhuangdou |
| 9447477 | Fat-liquoring | Jan 03, 13 | Sep 20, 16 | STAHL INTERNATIONAL BV |
| 9376729 | Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agents | Jul 28, 11 | Jun 28, 16 | LANXESS DEUTSCHLAND GMBH |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0182,636 | MODIFIED POLYLACTONES USEFUL FOR FATLIQUORING | Apr 13, 22 | Jun 06, 24 | TFL Ledertechnik GmbH |
| 2024/0043,805 | IMMORTALIZED CELL LINE FOR ENGINEERED SYNTHETIC LEATHER | Aug 21, 23 | Feb 08, 24 | Not available |
| 2023/0279,515 | COMPOSITION FOR MANUFACTURING LEATHER | Mar 06, 23 | Sep 07, 23 | Not available |
| 2023/0053,057 | LIONFISH LEATHER AND PREPARATION THEREOF | May 23, 22 | Feb 16, 23 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 35 Months (last 2 years Issuances)
- 35 Months (last 5 years Issuances)