C01
Inorganic chemistry
C01 (Inorganic chemistry) appears on 70,922 US grants and 72,882 published applications in this corpus.
Search patents in C01- Granted patents
- 70,922
- Published applications
- 72,882
- Assignees
- 17,964
- Inventors
- 130,873
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1121 | 0 |
| 1977 | 1031 | 0 |
| 1978 | 981 | 0 |
| 1979 | 711 | 0 |
| 1980 | 834 | 0 |
| 1981 | 905 | 0 |
| 1982 | 791 | 0 |
| 1983 | 850 | 0 |
| 1984 | 799 | 0 |
| 1985 | 818 | 0 |
| 1986 | 737 | 0 |
| 1987 | 790 | 0 |
| 1988 | 703 | 0 |
| 1989 | 916 | 0 |
| 1990 | 813 | 0 |
| 1991 | 897 | 0 |
| 1992 | 975 | 0 |
| 1993 | 960 | 0 |
| 1994 | 912 | 0 |
| 1995 | 814 | 0 |
| 1996 | 826 | 0 |
| 1997 | 839 | 0 |
| 1998 | 954 | 0 |
| 1999 | 1036 | 0 |
| 2000 | 1061 | 0 |
| 2001 | 1096 | 403 |
| 2002 | 1051 | 1323 |
| 2003 | 1156 | 1675 |
| 2004 | 1161 | 1954 |
| 2005 | 860 | 1886 |
| 2006 | 1081 | 2000 |
| 2007 | 990 | 1975 |
| 2008 | 983 | 2159 |
| 2009 | 1151 | 2430 |
| 2010 | 1656 | 3157 |
| 2011 | 1639 | 2904 |
| 2012 | 1749 | 2890 |
| 2013 | 2080 | 2856 |
| 2014 | 2254 | 2947 |
| 2015 | 2393 | 3335 |
| 2016 | 2375 | 3005 |
| 2017 | 2536 | 3212 |
| 2018 | 2445 | 3400 |
| 2019 | 2802 | 3316 |
| 2020 | 2761 | 3481 |
| 2021 | 2421 | 3607 |
| 2022 | 2442 | 3804 |
| 2023 | 2508 | 3938 |
| 2024 | 2675 | 4254 |
| 2025 | 2715 | 4003 |
| 2026 | 1868 | 2968 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- C01BNon-metallic elements47,053
- C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds25,361
- C01GCompounds containing metals not covered by subclasses c01d or c01f14,664
- C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium6,246
- C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium2,266
- C01CAmmonia2,019
Recent patents
- Tetraazadodecane based chelating agents for separation of rare earth elements and method therefor6 Oct 2026US 12,752,219 B2Ustav Organicke Chemie A Biochemie Av Cr, V. V. I.
- Containerized processing of activated aluminum6 Oct 2026US 12,752,248 B1Ltag Systems LLC
- Absorption method and mesoporous alumina used for the same6 Oct 2026US 12,752,252 B2Fujimi Incorporated
- Catalysts for cargen, methods of preparing, and uses of same6 Oct 2026US 12,752,259 B2Qatar Foundation for Education, Science and Community Development
- Complex oxides for reactive oxygen separation and related applications6 Oct 2026US 12,752,260 B2North Carolina State University
- Method for synthesizing zeolite nanoparticles in a saline phosphate buffer and associated nanoparticles, suspensions, pharmaceutical composition and uses8 Oct 2026US 2026/0306532 A1Centre National De La Recherche Scientifique
- Carbon dioxide adsorption battery, charge/discharge device, and carbon dioxide concentration device8 Oct 2026US 2026/0307004 A1Kuraray Co., Ltd.
- Hydrogen generation device8 Oct 2026US 2026/0307031 A1
- Electric radiant heating for direct conversion syngas reactor8 Oct 2026US 2026/0307033 A1Aether Fuels Pte. Ltd.
- Hydrogen production device8 Oct 2026US 2026/0307034 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Fluorescent silica-based nanoparticles1,448US 8,298,677 B2Cornell Research Foundation, Inc. · 2012
- Crystalline silicoaluminophosphates925US 4,440,871 AUnion Carbide Corporation · 1984
- Highly luminescent color-selective nano-crystalline materials747US 6,322,901 B1Massachusetts Institute of Technology · 2001
- Carbide nanomaterials684US 6,190,634 B1President and Fellows of Harvard College · 2001
- High modulus, low dielectric constant coatings575US 6,576,300 B1Axcelis Technologies, Inc. · 2003