A61K 31/785
Polymers containing nitrogen
A61K31/785 (Polymers containing nitrogen) appears on 1,284 US grants and 1,816 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,284
- Published applications
- 1,816
- Assignees
- 833
- Inventors
- 3,024
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 12 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 18 | 0 |
| 1993 | 17 | 0 |
| 1994 | 15 | 0 |
| 1995 | 17 | 0 |
| 1996 | 24 | 0 |
| 1997 | 48 | 0 |
| 1998 | 30 | 0 |
| 1999 | 27 | 0 |
| 2000 | 29 | 0 |
| 2001 | 34 | 9 |
| 2002 | 22 | 39 |
| 2003 | 27 | 64 |
| 2004 | 19 | 55 |
| 2005 | 12 | 71 |
| 2006 | 24 | 64 |
| 2007 | 14 | 81 |
| 2008 | 15 | 48 |
| 2009 | 13 | 71 |
| 2010 | 31 | 81 |
| 2011 | 24 | 57 |
| 2012 | 46 | 72 |
| 2013 | 45 | 98 |
| 2014 | 67 | 88 |
| 2015 | 71 | 107 |
| 2016 | 50 | 81 |
| 2017 | 60 | 98 |
| 2018 | 68 | 104 |
| 2019 | 52 | 81 |
| 2020 | 50 | 85 |
| 2021 | 53 | 86 |
| 2022 | 46 | 55 |
| 2023 | 26 | 65 |
| 2024 | 44 | 52 |
| 2025 | 39 | 63 |
| 2026 | 19 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface treatment of contact lens and treatment of ocular discomfort by water soluble polymers and lipids/liposomes22 Sep 2026US 12,740,942 B2Yeda Research and Development Co. Ltd.
- Methods of treating erythropoietic protoporphyria, x-linked protoporphyria, or congenital erythropoietic porphyria with glycine transport inhibitors1 Sep 2026US 12,721,847 B2Disc Medicine, Inc.
- Methods for using bioadhesive and steric interactions of copolymers with at least two moieties to minimize adverse effects mediated by external influences on cell, tissue, organ system, and organism biology11 Aug 2026US 12,702,132 B2Calm Water Therapeutics LLC
- Methods of treating hepatic encephalopathy4 Aug 2026US 12,697,326 B2Salix Pharmaceuticals, Inc.
- Antimicrobial polymer for use in ophthalmic implants21 Jul 2026US 12,685,803 B2Keramed, Inc.
- Polyglutamic acid compositions and methods of using10 Sep 2026US 2026/0263508 A1Bonafide Health, LLC
- Pyropheophorbide Analogues for Therapy and Diagnosis27 Aug 2026US 2026/0248828 A1RMW CHO Group Limited
- Extracellular vesicles loaded with polydopamine nanoparticles, and preparation method27 Aug 2026US 2026/0248848 A1The Second Medical Center?Chinese PLA General Hospital
- Minoxidil-crosslinked injectable hydrogels for local and sustained intradermal deliver y27 Aug 2026US 2026/0248929 A1The Trustees of the University of Pennsylvania
- Cosmetic or dermatological composition comprising polylysine dendrimers and use thereof20 Aug 2026US 2026/0240751 A1
Most cited
By later US patents
- Biofunctional surface modified ocular implants, surgical instruments, medical devices, prostheses, contact lenses and the like367US 6,387,379 B1University of Florida · 2002
- Method and composition for enhancing transport across biological membranes214US 6,306,993 B1The Board of Trustees of the Leland Stanford Jr. University · 2001
- Methods and compositions for reducing or eliminating post-surgical adhesion formation207US 6,136,333 ALife Medical Sciences, Inc. · 2000
- Methods for reducing or eliminating post-surgical adhesion formation203US 5,711,958 ALife Medical Sciences, Inc. · 1998
- Anti-microbial quaternary ammonium co-polymers199US 4,025,617 AMillmaster Onyx Corporation · 1977