C14C 3/18
Using polycondensation products or precursors thereof
Official title: using polycondensation products or precursors thereof
C14C3/18 (Using polycondensation products or precursors thereof) appears on 54 US grants and 40 published applications in this corpus.
Search patents in C14C- Granted patents
- 54
- Published applications
- 40
- Assignees
- 35
- Inventors
- 179
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 0 |
| 2006 | 2 | 5 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 3 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Use of epoxidized vegetable oils as tanning agents29 Sep 2026US 12,747,482 B2Workem S.R.L. Unipersonale
- Process for tanning leathers, pre-tanning products and use thereof18 Mar 2025US 12,252,752 B2Silvateam S.P.A.
- Method of manufacturing leather10 Dec 2024US 12,163,197 B2Midori Auto Leather Co., Ltd.
- Leather tanning method using chrome-free and formaldehyde-free adhesive22 Aug 2023US 11,732,316 B2Fujian Agriculture and Forestry University
- Method for producing hydrophobicizing leather treatment agents21 Jun 2022US 11,365,456 B2TFL Ledertechnik GmbH
- Leather or retanning compound with cyclodextrin based inclusion compound10 Apr 2025US 2025/0115970 A1BI-QEM PTE Ltd
- Use Of Epoxidized Vegetable Oils As Tanning Agents2 Jan 2025US 2025/0003019 A1Workem S.R.L. Unipersonale
- Modified polylactones useful for fatliquoring6 Jun 2024US 2024/0182636 A1TFL Ledertechnik GmbH
- Method of manufacturing leather7 Sep 2023US 2023/0279264 A1white
- Composition for manufacturing leather7 Sep 2023US 2023/0279515 A1white
Most cited
By later US patents
- Leather impregnated with temperature stabilizing material and method for producing such leather61US 6,179,879 B2Acushnet Company · 2001
- Interpolymers of unsaturated carboxylic acids and unsaturated sulfur acids37US 6,207,780 B1Rohm and Haas Company · 2001
- Phenol-formaldehyde condensates, their preparation and their use as dispersing agents, liquefaction agents and tanning agents20US 4,325,890 ABayer Aktiengesellschaft · 1982
- Method for treating a substrate made of animal fibers with solid particles and a chemical formulation comprising a colourant19US 9,845,516 B2Xeros Limited · 2017
- Recycling of cured aminoplast resins12US 5,382,476 ABASF SE · 1995