C25D 7/04
Tubes
Official title: Tubes; Rings; Hollow bodies
C25D7/04 (Tubes) appears on 377 US grants and 410 published applications in this corpus.
Search patents in C25D- Granted patents
- 377
- Published applications
- 410
- Assignees
- 295
- Inventors
- 1,001
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 5 |
| 2003 | 7 | 4 |
| 2004 | 4 | 8 |
| 2005 | 3 | 10 |
| 2006 | 2 | 14 |
| 2007 | 8 | 11 |
| 2008 | 4 | 13 |
| 2009 | 3 | 15 |
| 2010 | 5 | 16 |
| 2011 | 9 | 7 |
| 2012 | 11 | 11 |
| 2013 | 7 | 20 |
| 2014 | 9 | 15 |
| 2015 | 8 | 23 |
| 2016 | 15 | 39 |
| 2017 | 18 | 24 |
| 2018 | 15 | 19 |
| 2019 | 19 | 27 |
| 2020 | 23 | 21 |
| 2021 | 16 | 15 |
| 2022 | 16 | 18 |
| 2023 | 15 | 31 |
| 2024 | 13 | 25 |
| 2025 | 17 | 8 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic devices including coated surfaces25 Aug 2026US 12,716,119 B2Maxterial, Inc.
- Coating for a piston ring11 Aug 2026US 12,704,177 B2Mahle International GmbH
- Abrasion resistant coated tube14 Jul 2026US 12,680,629 B2Cooper-Standard Automotive Inc.
- Method of manufacturing automotive body including automotive crashworthiness energy absorption part26 May 2026US 12,637,781 B2Jfe Steel Corporation
- Jar assembly14 Apr 2026US 12,600,520 B2Anomatic Corporation
- System and method of plating pipe16 Jul 2026US 2026/0201597 A1ABB Schweiz AG
- Pneumatic devices including surface coatings9 Jul 2026US 2026/0193747 A1Maxterial, Inc.
- Device for electrochemical surface treatment of an inner surface of a tubular member made of electrically conductive material, in particular a gun barrel, and system comprising such a device9 Jul 2026US 2026/0193806 A1Knds France Mechanics
- Oil-well metal pipe9 Jul 2026US 2026/0193943 A1Nippon Steel Corporation
- Articles for containing a molten material and methods of producing the same4 Jun 2026US 2026/0151829 A1Battelle Energy Alliance, LLC
Most cited
By later US patents
- Apparatus for incremental electro-processing of large areas91US 4,082,638 A1978
- Method and apparatus for electrolytic treatment of containers70US 4,246,088 AMetal Box Limited · 1981
- Process and apparatus for in situ electroforming a structural layer of metal bonded to an internal wall of a metal tube41US 5,527,445 AOntario Hydro · 1996
- Method of manufacturing catalytic tubes with wall-supported catalyst, particularly for steam reforming of hydrocarbons and methanation36US 4,019,969 AInstytut Nawozow Sztucznych · 1977
- Curved high temperature alloy sandwich panel with a truss core and fabrication method32US 9,731,471 B2HRL Laboratories, LLC · 2017