A61F 2013/427
Ph indicator
Official title: {pH indicator}
A61F2013/427 (Ph indicator) appears on 56 US grants and 108 published applications in this corpus.
Search patents in A61F- Granted patents
- 56
- Published applications
- 108
- Assignees
- 30
- Inventors
- 148
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 4 |
| 2016 | 1 | 22 |
| 2017 | 4 | 11 |
| 2018 | 3 | 6 |
| 2019 | 8 | 9 |
| 2020 | 5 | 15 |
| 2021 | 11 | 11 |
| 2022 | 5 | 2 |
| 2023 | 3 | 9 |
| 2024 | 1 | 0 |
| 2025 | 2 | 5 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition for wet indicator17 Mar 2026US 12,575,977 B2Henkel AG & Co. KGaA
- PH and moisture indicator devices and formulations17 Mar 2026US 12,578,318 B2Smith & Nephew, Inc.
- Wetness indicator free from halogen-containing species11 Mar 2025US 12,245,922 B2Bostik SA
- Absorbent articles having channel-forming areas and wetness indicator18 Feb 2025US 12,226,292 B2The Procter & Gamble Company
- Incontinence assistance appliances and garments7 May 2024US 11,974,937 B2Dignify Holdings Pty. Ltd.
- Health Monitoring Diaper System with Integrated Multi-Sensor Technology and Real-Time Alert Capabilities4 Dec 2025US 2025/0366786 A1
- Urine testing garment13 Nov 2025US 2025/0345212 A1
- Ph-sensitive wound dressing13 Nov 2025US 2025/0345479 A1
- Metabolite detection method and nursing article23 Oct 2025US 2025/0325409 A1Shenda Chuangxin (Shenzhen) Technology Co., Ltd
- Absorbent articles having channel-forming areas and wetness indicator8 May 2025US 2025/0143934 A1The Procter & Gamble Company
Most cited
By later US patents
- pH indicator device and formulation69US 9,829,471 B2Smith & Nephew, Inc. · 2017
- Absorbent articles having channel-forming areas and wetness indicator57US 9,789,009 B2The Procter & Gamble Company · 2017
- Wetness indicating hot-melt adhesives52US 4,895,567 AThe International Group, Inc. · 1990
- Flexible manipulative incontinent aid50US 4,197,849 A1980
- Absorbent tampon42US 5,217,444 A1993