A61N 1/20
Continuous direct currents
Official title: continuous direct currents
A61N1/20 (Continuous direct currents) appears on 2,098 US grants and 2,600 published applications in this corpus.
Search patents in A61N- Granted patents
- 2,098
- Published applications
- 2,600
- Assignees
- 1,026
- Inventors
- 3,845
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 12 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 15 | 0 |
| 1993 | 14 | 0 |
| 1994 | 26 | 0 |
| 1995 | 23 | 0 |
| 1996 | 28 | 0 |
| 1997 | 39 | 0 |
| 1998 | 50 | 0 |
| 1999 | 43 | 0 |
| 2000 | 55 | 0 |
| 2001 | 47 | 13 |
| 2002 | 50 | 78 |
| 2003 | 54 | 72 |
| 2004 | 56 | 100 |
| 2005 | 26 | 80 |
| 2006 | 37 | 87 |
| 2007 | 35 | 92 |
| 2008 | 34 | 96 |
| 2009 | 45 | 112 |
| 2010 | 48 | 124 |
| 2011 | 46 | 91 |
| 2012 | 59 | 79 |
| 2013 | 66 | 112 |
| 2014 | 120 | 117 |
| 2015 | 96 | 131 |
| 2016 | 88 | 122 |
| 2017 | 107 | 139 |
| 2018 | 77 | 128 |
| 2019 | 114 | 149 |
| 2020 | 87 | 119 |
| 2021 | 82 | 129 |
| 2022 | 78 | 105 |
| 2023 | 80 | 98 |
| 2024 | 81 | 99 |
| 2025 | 70 | 73 |
| 2026 | 38 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modulation of SIRT6 Oct 2026US 12,752,107 B2Leonhardt Ventures LLC
- Transdermal permeant application device22 Sep 2026US 12,741,127 B2PassPort Technologies, Inc.
- Photobiomodulation therapy garment, methods and uses25 Aug 2026US 12,714,876 B2Niraxx, Inc.
- Electric shock cover18 Aug 2026US 12,708,765 B1
- Subthreshold direct current (DC) nerve conduction block after suprathreshold “priming”18 Aug 2026US 12,708,774 B2Case Western Reserve University
- Sensor sheet with digital distributed data acquisition for wound monitoring and treatment17 Sep 2026US 2026/0272383 A1Smith & Nephew, Inc.
- System and Method for Treating a Patient by Applying an Electric Field17 Sep 2026US 2026/0273275 A1
- Diffusion promotion device and ion introduction system10 Sep 2026US 2026/0263787 A1Cysay Inc.
- Medication Delivery Device13 Aug 2026US 2026/0232976 A1National University Corporation, Iwate University
- Extracardiac evoked-response sensing6 Aug 2026US 2026/0224902 A1Medtronic, Inc.
Most cited
By later US patents
- Dilating and support apparatus with disease inhibitors and methods for use1,862US 6,450,989 B2Artemis Medical, Inc. · 2002
- Electroporation ablation apparatus, system, and method1,277US 7,655,004 B2Ethicon Endo-Surgery, Inc. · 2010
- Device and method for enchancing transdermal sampling1,134US 6,219,574 B1Alza Corporation · 2001
- Intradermal drug delivery device and method for intradermal delivery of drugs978US 5,527,288 AElan Medical Technologies Limited · 1996
- Multi-purpose balloon catheter922US 5,728,068 ACordis Corporation · 1998