A61K 31/185
Acids
Official title: Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids (hydroxamic acids A61K31/16; peroxy acids A61K31/327)
A61K31/185 (Acids) appears on 18,399 US grants and 31,317 published applications in this corpus.
Search patents in A61K- Granted patents
- 18,399
- Published applications
- 31,317
- Assignees
- 9,430
- Inventors
- 43,286
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 50 | 0 |
| 1978 | 61 | 0 |
| 1979 | 51 | 0 |
| 1980 | 79 | 0 |
| 1981 | 39 | 0 |
| 1982 | 41 | 0 |
| 1983 | 53 | 0 |
| 1984 | 52 | 0 |
| 1985 | 51 | 0 |
| 1986 | 48 | 0 |
| 1987 | 72 | 0 |
| 1988 | 77 | 0 |
| 1989 | 135 | 0 |
| 1990 | 104 | 0 |
| 1991 | 108 | 0 |
| 1992 | 116 | 0 |
| 1993 | 144 | 0 |
| 1994 | 118 | 0 |
| 1995 | 153 | 0 |
| 1996 | 195 | 0 |
| 1997 | 289 | 0 |
| 1998 | 293 | 0 |
| 1999 | 345 | 0 |
| 2000 | 306 | 0 |
| 2001 | 350 | 133 |
| 2002 | 350 | 528 |
| 2003 | 339 | 821 |
| 2004 | 241 | 950 |
| 2005 | 220 | 941 |
| 2006 | 290 | 1005 |
| 2007 | 232 | 929 |
| 2008 | 211 | 877 |
| 2009 | 215 | 955 |
| 2010 | 350 | 1083 |
| 2011 | 409 | 1093 |
| 2012 | 475 | 1062 |
| 2013 | 684 | 1268 |
| 2014 | 810 | 1606 |
| 2015 | 839 | 1607 |
| 2016 | 867 | 1632 |
| 2017 | 1008 | 1600 |
| 2018 | 959 | 1479 |
| 2019 | 948 | 1556 |
| 2020 | 966 | 1632 |
| 2021 | 945 | 1684 |
| 2022 | 856 | 1684 |
| 2023 | 736 | 1527 |
| 2024 | 767 | 1430 |
| 2025 | 784 | 1218 |
| 2026 | 515 | 1017 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Powder mixing device, and uses thereof6 Oct 2026US 12,751,925 B2University of Connecticut
- Prevention of viral transmission through feed6 Oct 2026US 12,751,931 B2Dsm IP Assets B.V.
- Stable levothyroxine compositions in aprotic polar solvents6 Oct 2026US 12,751,937 B2Xeris Pharmaceuticals, Inc.
- Small molecule inhibitors of viral replication6 Oct 2026US 12,751,963 B2The Trustees of Princeton University
- Synergistic activity of novel compounds against planktonic and biofilm cells of clinically relevant pathogens6 Oct 2026US 12,752,038 B2SterileCare Inc.
- Tea compositions comprising paraxanthine and methods of production thereof8 Oct 2026US 2026/0305643 A1
- Methods of determining glucose hypometabolism-induced energy crisis and treatments thereof8 Oct 2026US 2026/0306018 A1Senovia Biosciences LLC
- Skin-care product composition and pharmaceutical composition comprising sulfonated calixarene, and use of sulfonated calixarene8 Oct 2026US 2026/0306379 A1Calix Biotechnology (Hangzhou) Co., Ltd.
- Silica-based nanoparticles for sustained release of hydrophobic drug, preparation method therefor, and transdermal drug delivery system comprising same8 Oct 2026US 2026/0306418 A1Mpios Inc.
- Perfluorocarbon compositions, systems, and methods for ischemic, inflammatory, infectuous, transplant, and other medical conditions8 Oct 2026US 2026/0306422 A1
Most cited
By later US patents
- Retrograde tissue splitter and method1,605US 5,449,355 AValleylab, Inc. · 1995
- Retrograde tissue splitter and method1,585US 5,797,906 AValleylab, Inc. · 1998
- Wound dressing with conformable elastomeric wound contact layer1,263US 5,445,604 ASmith and Nephew Associated Companies Limited · 1995
- Anti-angiogenic compositions and methods of use968US 5,716,981 AAngiogenesis Technologies, Inc. · 1998
- 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