C04B 2237/58
Forming a gradient in composition or in properties across the laminate or
Official title: Forming a gradient in composition or in properties across the laminate or the joined articles
C04B2237/58 (Forming a gradient in composition or in properties across the laminate or) appears on 364 US grants and 440 published applications in this corpus.
Search patents in C04B- Granted patents
- 364
- Published applications
- 440
- Assignees
- 250
- Inventors
- 1,081
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 8 |
| 2003 | 3 | 8 |
| 2004 | 8 | 4 |
| 2005 | 4 | 9 |
| 2006 | 3 | 3 |
| 2007 | 5 | 13 |
| 2008 | 0 | 5 |
| 2009 | 4 | 13 |
| 2010 | 8 | 13 |
| 2011 | 8 | 18 |
| 2012 | 9 | 16 |
| 2013 | 10 | 25 |
| 2014 | 11 | 12 |
| 2015 | 16 | 15 |
| 2016 | 13 | 28 |
| 2017 | 18 | 21 |
| 2018 | 14 | 18 |
| 2019 | 22 | 25 |
| 2020 | 20 | 26 |
| 2021 | 15 | 24 |
| 2022 | 17 | 35 |
| 2023 | 24 | 29 |
| 2024 | 19 | 28 |
| 2025 | 26 | 30 |
| 2026 | 19 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2237/582By joining layers or articles of the same composition but having differentIndexing code140
- C04B 2237/586By joining layers or articles of the same composition but having differentIndexing code68
- C04B 2237/588By joining layers or articles of the same composition but having differentIndexing code51
Recent patents
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- Controlled gradient of porosity in CMC16 Jun 2026US 12,655,069 B2Rtx Corporation
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- Highly-insulated ingot mold6 Aug 2026US 2026/0225283 A1HarbisonWalker International Holdings, Inc.
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216665 A1Sumitomo Chemical Company, Limited
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- Multilayer electronic component23 Jul 2026US 2026/0213072 A1Samsung Electro-Mechanics Co., Ltd.
Most cited
By later US patents
- Electronically graded multilayer ferroelectric composites189US 5,693,429 AThe United States of America as represented by the Secretary of the Army · 1997
- Functionally stepped, resistive ceramic163US 5,880,439 APhilip Morris Incorporated · 1999
- Ceramic prosthetic implant suitable for a knee joint plateau123US 4,000,525 AThe United States of America as represented by the Secretary of the Navy · 1977
- Methods and apparatus for high performance structures123US 7,710,347 B2Raytheon Company · 2010
- Microwave technique for brazing materials111US 6,054,693 ACalifornia Institute of Technology · 2000