D21H 17/675
Oxides, hydroxides or carbonates
Official title: {Oxides, hydroxides or carbonates}
D21H17/675 (Oxides, hydroxides or carbonates) appears on 520 US grants and 556 published applications in this corpus.
Search patents in D21H- Granted patents
- 520
- Published applications
- 556
- Assignees
- 274
- Inventors
- 1,134
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 3 |
| 2002 | 13 | 17 |
| 2003 | 16 | 27 |
| 2004 | 20 | 33 |
| 2005 | 6 | 15 |
| 2006 | 12 | 10 |
| 2007 | 9 | 18 |
| 2008 | 2 | 13 |
| 2009 | 8 | 11 |
| 2010 | 3 | 17 |
| 2011 | 9 | 15 |
| 2012 | 11 | 15 |
| 2013 | 14 | 21 |
| 2014 | 17 | 21 |
| 2015 | 19 | 60 |
| 2016 | 17 | 27 |
| 2017 | 28 | 42 |
| 2018 | 32 | 30 |
| 2019 | 24 | 27 |
| 2020 | 31 | 25 |
| 2021 | 24 | 26 |
| 2022 | 19 | 18 |
| 2023 | 13 | 25 |
| 2024 | 14 | 18 |
| 2025 | 12 | 12 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Barrier-coated cellulose-based substrate, laminated packaging material and packaging container comprising the cellulose-based substrate2 Jun 2026US 12,643,724 B2Tetra Laval Holdings & Finance S. A.
- Board, method for manufacturing a board and a panel comprising such board material26 May 2026US 12,637,810 B2Unilin BV
- Process for producing precipitated calcium carbonate in the presence of natural ground calcium carbonate19 May 2026US 12,630,438 B2Omya International AG
- Printed material, method for producing printed material and printing medium for laser printing7 Apr 2026US 12,594,781 B2Oji Holdings Corporation
- Composition and method for papermaking24 Mar 2026US 12,584,273 B2Ecolab USA Inc.
- Process for producing rigid cellulosic product20 Aug 2026US 2026/0243023 A1Honext Material, Sl
- Methods for production of precipitated calcium carbonate (pcc) and pcc product2 Jul 2026US 2026/0184588 A1Specialty Minerals (Michigan) Inc.
- Novel composition and method for papermaking2 Jul 2026US 2026/0185303 A1Ecolab USA Inc.
- Method for producing calcium carbonate25 Jun 2026US 2026/0176152 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Fiber-based materials containing graphene oxide7 May 2026US 2026/0125853 A1Northwestern University
Most cited
By later US patents
- Highly loaded fiber-based composite material146US 5,731,080 AInternational Paper Company · 1998
- Conductive laminate flooring134US 4,724,187 ANevamar Corporation · 1988
- Highly filled sheets and method of preparation thereof125US 4,225,383 AThe Dow Chemical Company · 1980
- Wrapper for smoking articles and method122US 4,450,847 AOlin Corporation · 1984
- Method for fiber loading a chemical compound109US 5,223,090 AThe United States of America as represented by the Secretary of Agriculture · 1993