A61K 31/00
Medicinal preparations containing organic active ingredients
A61K31/00 (Medicinal preparations containing organic active ingredients) appears on 131,600 US grants and 221,407 published applications in this corpus.
Search patents in A61K- Granted patents
- 131,600
- Published applications
- 221,407
- Assignees
- 38,909
- Inventors
- 262,023
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 631 | 0 |
| 1977 | 551 | 0 |
| 1978 | 441 | 0 |
| 1979 | 322 | 0 |
| 1980 | 432 | 0 |
| 1981 | 391 | 0 |
| 1982 | 362 | 0 |
| 1983 | 344 | 0 |
| 1984 | 416 | 0 |
| 1985 | 396 | 0 |
| 1986 | 445 | 0 |
| 1987 | 531 | 0 |
| 1988 | 542 | 0 |
| 1989 | 849 | 0 |
| 1990 | 833 | 0 |
| 1991 | 840 | 0 |
| 1992 | 833 | 0 |
| 1993 | 983 | 0 |
| 1994 | 799 | 0 |
| 1995 | 1004 | 0 |
| 1996 | 1354 | 0 |
| 1997 | 1774 | 0 |
| 1998 | 1896 | 0 |
| 1999 | 2074 | 0 |
| 2000 | 2012 | 0 |
| 2001 | 2255 | 927 |
| 2002 | 2500 | 3575 |
| 2003 | 2314 | 5246 |
| 2004 | 1640 | 6203 |
| 2005 | 1564 | 6332 |
| 2006 | 1912 | 6185 |
| 2007 | 1509 | 6044 |
| 2008 | 1532 | 6140 |
| 2009 | 1629 | 6691 |
| 2010 | 2525 | 7659 |
| 2011 | 2718 | 7642 |
| 2012 | 3484 | 7599 |
| 2013 | 4802 | 8906 |
| 2014 | 5916 | 10555 |
| 2015 | 6540 | 10784 |
| 2016 | 6619 | 11054 |
| 2017 | 7272 | 10986 |
| 2018 | 6787 | 10662 |
| 2019 | 7112 | 11250 |
| 2020 | 7009 | 11638 |
| 2021 | 6630 | 11727 |
| 2022 | 6023 | 11761 |
| 2023 | 5308 | 11164 |
| 2024 | 5424 | 11548 |
| 2025 | 5614 | 10698 |
| 2026 | 3907 | 8431 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 31/33Heterocyclic compounds80,826
- A61K 31/70Carbohydrates29,215
- A61K 31/185Acids18,399
- A61K 31/13Amines11,104
- A61K 31/56Compounds containing cyclopenta[a]hydrophenanthrene ring systems9,399
- A61K 31/16Amides9,094
- A61K 31/21Esters9,056
- A61K 31/66Phosphorus compounds6,631
All 31 subgroupsShow fewer
- A61K 31/045Hydroxy compounds4,460
- A61K 31/12Ketones3,449
- A61K 31/74Synthetic polymeric materials2,867
- A61K 31/60Salicylic acid2,290
- A61K 31/28Compounds containing heavy metals1,988
- A61K 31/275Nitriles1,572
- A61K 31/557Eicosanoids1,551
- A61K 31/658O-phenolic cannabinoids1,411
- A61K 31/59Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems1,394
- A61K 31/075Ethers or acetals1,252
- A61K 31/63Compounds containing para-n-benzenesulfonyl-n-groups1,023
- A61K 31/65Tetracyclines1,020
- A61K 31/095Sulfur, selenium, or tellurium compounds938
- A61K 31/69Boron compounds935
- A61K 31/01Hydrocarbons912
- A61K 31/655Azo , diazo , azoxy , azido or diazoamino compounds526
- A61K 31/695Silicon compounds523
- A61K 31/11Aldehydes478
- A61K 31/02Halogenated hydrocarbons438
- A61K 31/325Carbamic acids360
- A61K 31/64Sulfonylureas335
- A61K 31/327Peroxy compounds252
- A61K 31/04Nitro compounds251
Recent patents
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- Method and apparatus for delivering an API-containing liquid to an edible substrate6 Oct 2026US 12,751,915 B2Transport Authority, Inc.
- Ketamine formulation6 Oct 2026US 12,751,918 B2Fresenius Kabi USA, LLC
- Liposomal enhanced intra-peritoneal chemotherapy6 Oct 2026US 12,751,919 B2
- Medication that protects the intestinal microbiota and their preparation methods and applications6 Oct 2026US 12,751,921 B2University of Science and Technology of China
- Tea compositions comprising paraxanthine and methods of production thereof8 Oct 2026US 2026/0305643 A1
- Adaptogenic, high-protein food product and method of making same8 Oct 2026US 2026/0305660 A1
- Interface structure for a bioelectrode8 Oct 2026US 2026/0306000 A1Teknologian tutkimuskeskus VTT Oy
- Methods of determining glucose hypometabolism-induced energy crisis and treatments thereof8 Oct 2026US 2026/0306018 A1Senovia Biosciences LLC
- Esketamine formulations and methods for preparation and storage8 Oct 2026US 2026/0306360 A1Janssen Pharmaceutica NV
Most cited
By later US patents
- Medical devices and applications of polyhydroxyalkanoate polymers1,636US 6,838,493 B2Metabolix, Inc. · 2005
- Retrograde tissue splitter and method1,605US 5,449,355 AValleylab, Inc. · 1995
- Serial injection of muramyldipeptides and liposomes enhances the anti-infective activity of muramyldipeptides1,595US 4,522,811 ASyntex (U.S.A.) Inc. · 1985
- Retrograde tissue splitter and method1,585US 5,797,906 AValleylab, Inc. · 1998
- Sustained release systems of ascorbic acid phosphate1,391US 8,034,363 B2Advanced Technologies and Regenerative Medicine, LLC · 2011