A61K 31/66
Phosphorus compounds
A61K31/66 (Phosphorus compounds) appears on 6,631 US grants and 11,296 published applications in this corpus.
Search patents in A61K- Granted patents
- 6,631
- Published applications
- 11,296
- Assignees
- 4,077
- Inventors
- 19,277
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 14 | 0 |
| 1978 | 19 | 0 |
| 1979 | 13 | 0 |
| 1980 | 17 | 0 |
| 1981 | 14 | 0 |
| 1982 | 18 | 0 |
| 1983 | 12 | 0 |
| 1984 | 13 | 0 |
| 1985 | 3 | 0 |
| 1986 | 15 | 0 |
| 1987 | 20 | 0 |
| 1988 | 29 | 0 |
| 1989 | 32 | 0 |
| 1990 | 33 | 0 |
| 1991 | 37 | 0 |
| 1992 | 41 | 0 |
| 1993 | 39 | 0 |
| 1994 | 46 | 0 |
| 1995 | 50 | 0 |
| 1996 | 76 | 0 |
| 1997 | 115 | 0 |
| 1998 | 94 | 0 |
| 1999 | 131 | 0 |
| 2000 | 120 | 0 |
| 2001 | 112 | 56 |
| 2002 | 131 | 169 |
| 2003 | 119 | 253 |
| 2004 | 84 | 314 |
| 2005 | 69 | 328 |
| 2006 | 96 | 309 |
| 2007 | 79 | 303 |
| 2008 | 96 | 286 |
| 2009 | 91 | 282 |
| 2010 | 138 | 346 |
| 2011 | 150 | 329 |
| 2012 | 154 | 328 |
| 2013 | 219 | 424 |
| 2014 | 297 | 538 |
| 2015 | 316 | 599 |
| 2016 | 340 | 591 |
| 2017 | 389 | 647 |
| 2018 | 413 | 586 |
| 2019 | 367 | 539 |
| 2020 | 295 | 544 |
| 2021 | 296 | 625 |
| 2022 | 316 | 659 |
| 2023 | 270 | 675 |
| 2024 | 268 | 601 |
| 2025 | 296 | 541 |
| 2026 | 211 | 424 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 31/675Having nitrogen as a ring hetero atom3,008
- A61K 31/683Diesters of a phosphorus acid with two hydroxy compounds1,440
- A61K 31/661Phosphorus acids or esters thereof not having p—c bonds891
- A61K 31/662Phosphorus acids or esters thereof having p—c bonds881
- A61K 31/665Having oxygen as a ring hetero atom326
- A61K 31/664Amides of phosphorus acids227
- A61K 31/67Having sulfur as a ring hetero atom45
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Most cited
By later US patents
- Methods for treating multiple myeloma with 3-(4-amino-1-oxo-1,3-dihydro-isoindol-2-yl)-piperidine-2,6-dione after stem cell transplantation733US 9,101,621 B2Celgene Corporation · 2015
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- Method and apparatus for removing arterial constriction264US 4,636,195 A1987
- Methods for treating diabetic neuropathy258US 7,030,146 B2Kansas University Medical Center · 2006
- Immunotherapy with in vitro-selected antigen-specific lymphocytes after non-myeloablative lymphodepleting chemotherapy258US 8,034,334 B2The United States of America, as represented by the Secretary, Department of Health and Human Services · 2011