A61K 33/24
Heavy metals
Official title: Heavy metals; Compounds thereof
A61K33/24 (Heavy metals) appears on 5,553 US grants and 10,078 published applications in this corpus.
Search patents in A61K- Granted patents
- 5,553
- Published applications
- 10,078
- Assignees
- 4,081
- Inventors
- 16,545
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 16 | 0 |
| 1983 | 9 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 17 | 0 |
| 1987 | 14 | 0 |
| 1988 | 14 | 0 |
| 1989 | 21 | 0 |
| 1990 | 25 | 0 |
| 1991 | 31 | 0 |
| 1992 | 29 | 0 |
| 1993 | 28 | 0 |
| 1994 | 19 | 0 |
| 1995 | 28 | 0 |
| 1996 | 42 | 0 |
| 1997 | 66 | 0 |
| 1998 | 57 | 0 |
| 1999 | 83 | 0 |
| 2000 | 69 | 0 |
| 2001 | 80 | 42 |
| 2002 | 79 | 147 |
| 2003 | 95 | 213 |
| 2004 | 69 | 278 |
| 2005 | 75 | 279 |
| 2006 | 77 | 301 |
| 2007 | 64 | 282 |
| 2008 | 57 | 277 |
| 2009 | 53 | 256 |
| 2010 | 105 | 317 |
| 2011 | 118 | 324 |
| 2012 | 142 | 274 |
| 2013 | 178 | 402 |
| 2014 | 219 | 468 |
| 2015 | 267 | 451 |
| 2016 | 301 | 528 |
| 2017 | 279 | 471 |
| 2018 | 268 | 456 |
| 2019 | 319 | 521 |
| 2020 | 317 | 566 |
| 2021 | 358 | 651 |
| 2022 | 288 | 641 |
| 2023 | 280 | 589 |
| 2024 | 352 | 559 |
| 2025 | 297 | 455 |
| 2026 | 200 | 330 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 33/243Platinum1,729
- A61K 33/30Zinc1,516
- A61K 33/26Iron917
- A61K 33/34Copper679
- A61K 33/38Silver608
- A61K 33/242Gold358
- A61K 33/32Manganese348
- A61K 33/244Lanthanides245
All 12 subgroupsShow fewer
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By later US patents
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