C04B 2235/75
Products with a concentration gradient
C04B2235/75 (Products with a concentration gradient) appears on 223 US grants and 296 published applications in this corpus.
Search patents in C04B- Granted patents
- 223
- Published applications
- 296
- Assignees
- 161
- Inventors
- 751
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 4 |
| 2003 | 3 | 9 |
| 2004 | 8 | 6 |
| 2005 | 4 | 10 |
| 2006 | 4 | 7 |
| 2007 | 5 | 5 |
| 2008 | 6 | 2 |
| 2009 | 4 | 8 |
| 2010 | 6 | 8 |
| 2011 | 8 | 13 |
| 2012 | 3 | 6 |
| 2013 | 5 | 11 |
| 2014 | 4 | 8 |
| 2015 | 11 | 8 |
| 2016 | 6 | 13 |
| 2017 | 5 | 11 |
| 2018 | 9 | 19 |
| 2019 | 8 | 17 |
| 2020 | 12 | 16 |
| 2021 | 10 | 20 |
| 2022 | 13 | 19 |
| 2023 | 17 | 32 |
| 2024 | 15 | 22 |
| 2025 | 26 | 15 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fabrication of polychromatic/polytranslucent zirconia block from pre-shaded ZrO2 block by infiltration11 Aug 2026US 12,703,669 B2James R. Glidewell Dental Ceramics, Inc.
- Gradient structure cubic boron nitride composite sheet and preparation method thereof30 Jun 2026US 12,668,549 B2Central South University
- Bonded body, ceramic-copper circuit board, and semiconductor device26 May 2026US 12,642,091 B2Niterra Materials Co., Ltd.
- Ceramic plate19 May 2026US 12,635,466 B2NGK Insulators, Ltd.
- Functionally graded firing setters and process for manufacturing these setters12 May 2026US 12,623,968 B2
- Bonded body13 Aug 2026US 2026/0234066 A1NGK Corporation
- Slurry infiltration of sacrificial material23 Jul 2026US 2026/0209127 A1Rtx Corporation
- Method to fabricate multiphase zirconia material to achieve high fracture toughness7 May 2026US 2026/0125327 A1James R. Glidewell Dental Ceramics, Inc.
- Zirconia sintered body2 Apr 2026US 2026/0092015 A1Nakashima Sangyo Co., Ltd.
- Method and composition for producing color uniform sintered ceramic bodies15 Jan 2026US 2026/0015289 A1James R. Glidewell Dental Ceramics, Inc.
Most cited
By later US patents
- Functionally stepped, resistive ceramic163US 5,880,439 APhilip Morris Incorporated · 1999
- Methods for fabricating gradient alloy articles with multi-functional properties153US 9,101,979 B2California Institute of Technology · 2015
- Refractory electrical device127US 5,085,804 ANorton Company · 1992
- Refractory electrical device100US 5,045,237 ANorton Company · 1991
- Method of manufacturing a diamond composite and a composite produced by same62US 6,447,852 B1Ambler Technologies, Inc. · 2002