A01N 25/28
Microcapsules or nanocapsules
Official title: Microcapsules {or nanocapsules}
A01N25/28 (Microcapsules or nanocapsules) appears on 624 US grants and 922 published applications in this corpus.
Search patents in A01N- Granted patents
- 624
- Published applications
- 922
- Assignees
- 441
- Inventors
- 2,117
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 13 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 1 |
| 2002 | 15 | 14 |
| 2003 | 8 | 6 |
| 2004 | 6 | 8 |
| 2005 | 0 | 13 |
| 2006 | 2 | 10 |
| 2007 | 4 | 10 |
| 2008 | 1 | 21 |
| 2009 | 1 | 22 |
| 2010 | 3 | 20 |
| 2011 | 6 | 28 |
| 2012 | 12 | 35 |
| 2013 | 7 | 44 |
| 2014 | 20 | 45 |
| 2015 | 35 | 40 |
| 2016 | 21 | 41 |
| 2017 | 28 | 45 |
| 2018 | 25 | 63 |
| 2019 | 42 | 54 |
| 2020 | 24 | 50 |
| 2021 | 27 | 39 |
| 2022 | 27 | 62 |
| 2023 | 26 | 70 |
| 2024 | 27 | 77 |
| 2025 | 51 | 63 |
| 2026 | 22 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and procedure for obtaining natural pyrethrin microbiocapsules with high stability22 Sep 2026US 12,740,564 B2Trade Corporation International S.A.U.
- Methods of protecting a plant from fungal pests28 Jul 2026US 12,690,588 B2Novozymes Bioag A/S
- Microcapsule composition, method for manufacturing same, agrochemical formulation comprising same and weed control method7 Jul 2026US 12,672,652 B2Kumiai Chemical Industry Co., Ltd.
- Biodegradable polyurea/polyurethane microcapsules23 Jun 2026US 12,661,627 B2Symrise AG
- Hygroscopic salt microencapsulation, and uses thereof16 Jun 2026US 12,653,183 B2Animal Control Technologies (Australia) Pty Ltd
- Microencapsulated pheromone formulations8 Oct 2026US 2026/0305607 A1
- Block copolymers with polyester moieties and applications thereof8 Oct 2026US 2026/0308333 A1ISP Investments Inc.
- Microencapsulated pheromone formulations1 Oct 2026US 2026/0293885 A1
- Microbial compositions24 Sep 2026US 2026/0283158 A1NewLeaf Symbiotics, Inc.
- Bacteria-responsive particles, methods for preparation, and use in packaging or on surfaces17 Sep 2026US 2026/0271926 A1
Most cited
By later US patents
- Absorbent articles comprising nanoparticles1,110US 7,988,779 B2McNeil-PPC, Inc. · 2011
- Protein microspheres and methods of using them318US 5,679,377 AAlkermes Controlled Therapeutics, Inc. · 1997
- Processes for preparation of microspheres311US 4,166,800 ASandoz Ltd. · 1979
- Method of encapsulating biologically active materials in lipid vesicles255US 4,241,046 A1980
- Microencapsulation process195US 4,272,398 AThe United States of America as represented by the Secretary of Agriculture · 1981