C01B 32/20
Graphite
C01B32/20 (Graphite) appears on 1,397 US grants and 2,158 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,397
- Published applications
- 2,158
- Assignees
- 964
- Inventors
- 4,398
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 6 |
| 2002 | 12 | 20 |
| 2003 | 10 | 14 |
| 2004 | 10 | 18 |
| 2005 | 7 | 21 |
| 2006 | 7 | 22 |
| 2007 | 8 | 16 |
| 2008 | 10 | 23 |
| 2009 | 9 | 38 |
| 2010 | 15 | 36 |
| 2011 | 25 | 44 |
| 2012 | 25 | 72 |
| 2013 | 24 | 81 |
| 2014 | 53 | 97 |
| 2015 | 70 | 107 |
| 2016 | 86 | 116 |
| 2017 | 101 | 125 |
| 2018 | 88 | 155 |
| 2019 | 98 | 141 |
| 2020 | 111 | 131 |
| 2021 | 82 | 130 |
| 2022 | 95 | 116 |
| 2023 | 73 | 152 |
| 2024 | 99 | 168 |
| 2025 | 107 | 171 |
| 2026 | 59 | 138 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Artificial graphite and preparation method thereof, secondary battery containing such artificial graphite, and electric apparatus6 Oct 2026US 12,755,973 B2Contemporary Amperex Technology Co., Limited
- Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device6 Oct 2026US 12,755,980 B2Semiconductor Energy Laboratory Co.Ltd.
- Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device29 Sep 2026US 12,749,686 B2Semiconductor Energy Laboratory Co.Ltd.
- Metamaterial structure and forming method thereof15 Sep 2026US 12,735,322 B2Seoul National University R&Db Foundation
- Heteroelement-doped highly graphitic porous carbon body, a catalyst including the same, and a method for producing the same15 Sep 2026US 12,738,508 B2Daegu Gyeongbuk Institute of Science and Technology
- Graphitization furnace comprising widening cross-section8 Oct 2026US 2026/0309421 A1Sgl Carbon SE
- Graphite carbon material for lithium-ion secondary battery negative electrode, negative electrode material for lithium-ion secondary battery, negative electrode for lithium-ion secondary battery, and lithium-ion secondary battery8 Oct 2026US 2026/0312048 A1Resonac Corporation
- Improved thermoplastic carbon precursor material for the manufacturing of battery electrodes1 Oct 2026US 2026/0296895 A1Rain Carbon BV
- Negative electrode active material, negative electrode sheet, secondary battery, and electronic device1 Oct 2026US 2026/0302234 A1Ningde Amperex Technology Limited
- Graphitization furnace comprising an ash outlet24 Sep 2026US 2026/0284621 A1Sgl Carbon SE
Most cited
By later US patents
- Nano-scaled graphene plates414US 7,071,258 B1Nanotek Instruments, Inc. · 2006
- Intercalation of graphite153US 4,895,713 AUnion Carbide Corporation · 1990
- Composite reinforcing material and molding material117US 10,421,863 B2Graphene Platform Corporation · 2019
- Composite reinforcing material and method of producing a composite reinforcing material117US 9,862,833 B2Graphene Platform Corporation · 2018
- Composite reinforcing material and molding material117US 9,862,834 B2Graphene Platform Corporation · 2018