A61K 31/35
Having six-membered rings with one oxygen as the only ring hetero atom
Official title: having six-membered rings with one oxygen as the only ring hetero atom
A61K31/35 (Having six-membered rings with one oxygen as the only ring hetero atom) appears on 6,231 US grants and 11,337 published applications in this corpus.
Search patents in A61K- Granted patents
- 6,231
- Published applications
- 11,337
- Assignees
- 4,511
- Inventors
- 19,968
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 13 | 0 |
| 1978 | 16 | 0 |
| 1979 | 15 | 0 |
| 1980 | 16 | 0 |
| 1981 | 13 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 15 | 0 |
| 1987 | 12 | 0 |
| 1988 | 12 | 0 |
| 1989 | 26 | 0 |
| 1990 | 22 | 0 |
| 1991 | 21 | 0 |
| 1992 | 17 | 0 |
| 1993 | 19 | 0 |
| 1994 | 26 | 0 |
| 1995 | 38 | 0 |
| 1996 | 51 | 0 |
| 1997 | 94 | 0 |
| 1998 | 106 | 0 |
| 1999 | 103 | 0 |
| 2000 | 92 | 0 |
| 2001 | 118 | 44 |
| 2002 | 130 | 199 |
| 2003 | 152 | 257 |
| 2004 | 76 | 354 |
| 2005 | 88 | 311 |
| 2006 | 91 | 390 |
| 2007 | 81 | 320 |
| 2008 | 77 | 343 |
| 2009 | 71 | 334 |
| 2010 | 124 | 377 |
| 2011 | 143 | 420 |
| 2012 | 166 | 360 |
| 2013 | 237 | 438 |
| 2014 | 293 | 544 |
| 2015 | 301 | 527 |
| 2016 | 322 | 539 |
| 2017 | 324 | 552 |
| 2018 | 328 | 539 |
| 2019 | 374 | 576 |
| 2020 | 345 | 567 |
| 2021 | 339 | 622 |
| 2022 | 314 | 622 |
| 2023 | 249 | 634 |
| 2024 | 271 | 607 |
| 2025 | 272 | 483 |
| 2026 | 174 | 378 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nanostructure or microstructure and method for producing same6 Oct 2026US 12,751,923 B2The University of Tokyo
- Small molecule inhibitors of viral replication6 Oct 2026US 12,751,963 B2The Trustees of Princeton University
- Compound and composition for preventing or treating neuroinflammatory brain diseases comprising same as active ingredient6 Oct 2026US 12,753,186 B2Korea Institute of Ocean Science & Technology
- Method of inhibiting dopamine transporter activity29 Sep 2026US 12,746,217 B2SpecNova LLC
- Compositions comprising HDAC inhibitors and retinoids22 Sep 2026US 12,740,953 B2The Regents of the University of California
- Interface structure for a bioelectrode8 Oct 2026US 2026/0306000 A1Teknologian tutkimuskeskus VTT Oy
- Suspension containing heterocyclidene acetamide derivative8 Oct 2026US 2026/0306401 A1Mochida Pharmaceutical Co., Ltd.
- Nutritional compositions, supplements, and fortifiers8 Oct 2026US 2026/0306432 A1Societe des Produits Nestle S. A.
- Water-based liquid preparation8 Oct 2026US 2026/0306443 A1Senju USA, Inc.
- Halogenated Xanthene-Containing Topical Anti-Gram-Positive Bacterial Ophthalmic Composition and Method8 Oct 2026US 2026/0306444 A1Provectus Pharmatech, Inc.
Most cited
By later US patents
- Solid carriers for improved delivery of active ingredients in pharmaceutical compositions930US 6,248,363 B1Lipocine Inc. · 2001
- Solid carriers for improved delivery of active ingredients in pharmaceutical compositions684US 6,923,988 B2Lipocine Inc. · 2005
- Solid carriers for improved delivery of hydrophobic active ingredients in pharmaceutical compositions616US 6,569,463 B2Lipocine Inc. · 2003
- Emulsion compositions for polyfunctional active ingredients342US 6,720,001 B2Lipocine Inc. · 2004
- Pharmaceutical and cosmetic carrier or composition for topical application284US 6,911,211 B2Foamix Ltd. · 2005