C10N 2040/20
Metal working
C10N2040/20 (Metal working) appears on 1,766 US grants and 868 published applications in this corpus.
Search patents in C10N- Granted patents
- 1,766
- Published applications
- 868
- Assignees
- 712
- Inventors
- 3,262
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 73 | 0 |
| 1977 | 48 | 0 |
| 1978 | 63 | 0 |
| 1979 | 57 | 0 |
| 1980 | 57 | 0 |
| 1981 | 49 | 0 |
| 1982 | 31 | 0 |
| 1983 | 37 | 0 |
| 1984 | 33 | 0 |
| 1985 | 25 | 0 |
| 1986 | 28 | 0 |
| 1987 | 35 | 0 |
| 1988 | 49 | 0 |
| 1989 | 54 | 0 |
| 1990 | 36 | 0 |
| 1991 | 43 | 0 |
| 1992 | 47 | 0 |
| 1993 | 44 | 0 |
| 1994 | 60 | 0 |
| 1995 | 41 | 0 |
| 1996 | 40 | 0 |
| 1997 | 58 | 0 |
| 1998 | 51 | 0 |
| 1999 | 30 | 0 |
| 2000 | 37 | 0 |
| 2001 | 42 | 6 |
| 2002 | 30 | 20 |
| 2003 | 21 | 27 |
| 2004 | 20 | 32 |
| 2005 | 8 | 33 |
| 2006 | 12 | 27 |
| 2007 | 12 | 32 |
| 2008 | 15 | 30 |
| 2009 | 11 | 47 |
| 2010 | 26 | 45 |
| 2011 | 23 | 35 |
| 2012 | 38 | 49 |
| 2013 | 26 | 32 |
| 2014 | 27 | 33 |
| 2015 | 36 | 46 |
| 2016 | 29 | 50 |
| 2017 | 30 | 42 |
| 2018 | 27 | 63 |
| 2019 | 36 | 50 |
| 2020 | 40 | 27 |
| 2021 | 38 | 32 |
| 2022 | 36 | 20 |
| 2023 | 18 | 36 |
| 2024 | 18 | 26 |
| 2025 | 14 | 19 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10N 2040/22With essential removal of materialIndexing code745
- C10N 2040/24Without essential removal of materialIndexing code636
- C10N 2040/244Of specific metalsIndexing code624
- C10N 2040/242Hot workingIndexing code543
- C10N 2040/243Cold workingIndexing code533
- C10N 2040/241Manufacturing joint-less pipesIndexing code506
Recent patents
- One-step pretreatment method of metallic substrates for metal cold forming14 Jul 2026US 12,680,048 B2Chemetall GmbH
- Quality management system for machining process, lubricating liquid process, lubricating liquid for machine tool, and alkaline electrolyzed water generation device for generating lubricating liquid16 Jun 2026US 12,654,273 B2Plum & Peach, Ltd.
- Aqueous lubricant for metalworking2 Jun 2026US 12,644,070 B2Totalenergies Onetech
- Metal working fluid decontamination apparatus21 Apr 2026US 12,605,474 B2
- Manufacture, isolation, purification, and uses of small particle size cellulose particles and compositions24 Feb 2026US 12,558,303 B2Renmatix, Inc.
- Water-soluble metalworking oil agent1 Oct 2026US 2026/0297450 A1Idemitsu Kosan Co., Ltd.
- Lubricating oil composition24 Sep 2026US 2026/0286244 A1Idemitsu Kosan Co., Ltd.
- Aqueous lubricant for metalworking13 Aug 2026US 2026/0234501 A1Totalenergies Onetech
- Metal working fluid decontamination apparatus6 Aug 2026US 2026/0224763 A1
- Oil-based graphite lubricant compositions16 Jul 2026US 2026/0201266 A1
Most cited
By later US patents
- Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition779US 8,193,129 B2Nippon Oil Co., Ltd. · 2012
- Visco-elastic, isotropic materials based on water, fluorinate sufactants and fluorinated oils, process for their preparation, and their use in various fields, such as optics, pharmacology and electrodynamics274US 5,185,099 AInstitut National de Recherche Chimique Appliquee · 1993
- Multilayer information disc192US 4,450,553 AU. S. Philips Corporation · 1984
- Olefin oligomerization with BF.sub.3 alcohol alkoxylate co-catalysts131US 5,068,487 AEthyl Corporation · 1991
- Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same122US 4,863,623 ATexaco Inc. · 1989