A61F 2013/429
Thermochromic materials
Official title: {Thermochromic materials, e.g. ink or dye}
A61F2013/429 (Thermochromic materials) appears on 34 US grants and 56 published applications in this corpus.
Search patents in A61F- Granted patents
- 34
- Published applications
- 56
- Assignees
- 21
- Inventors
- 101
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 7 |
| 2018 | 3 | 2 |
| 2019 | 4 | 7 |
| 2020 | 2 | 8 |
| 2021 | 2 | 5 |
| 2022 | 4 | 4 |
| 2023 | 3 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sterilization of medical dressings with enhanced antimicrobial properties10 Mar 2026US 12,569,371 B2Hydrofera, LLC
- Method of manufacturing a diaper with moisture sensors13 May 2025US 12,295,817 B2
- Method of manufacturing a diaper with moisture sensors22 Apr 2025US 12,279,935 B2
- Sensor for absorbent article31 Dec 2024US 12,178,689 B2Medline Industries, Inc.
- Method of manufacturing a diaper with moisture sensors24 Sep 2024US 12,097,101 B2
- Absorbent articles having reactive graphics for providing context-relevant digital experiences2 Jul 2026US 2026/0183154 A1Kimberly-Clark Worldwide, Inc.
- Environmentally friendly cloth diaper having interchangable wetness indicator25 Dec 2025US 2025/0387274 A1
- Absorbent article with improved absorbent core21 Aug 2025US 2025/0262100 A1
- Sensor for absorbent article10 Apr 2025US 2025/0114253 A1Medline Industries, Inc.
- Sensor for absorbent article29 Feb 2024US 2024/0065898 A1Medline Industries, Inc.
Most cited
By later US patents
- Wetness indicating diaper122US 5,197,958 A1993
- Wetness indicating diaper102US 5,389,093 A1995
- Protective covering for select areas of the surface anatomy of the body26US 5,395,675 A1995
- Wearable apparatus for detecting a target substance in a liquid14US 10,016,315 B2Undercover Colors, Inc. · 2018
- Absorbent article with sensor8US 10,285,871 B2The Procter & Gamble Company · 2019