H05K 2203/161
Using chemical substances
Official title: Using chemical substances, e.g. colored or fluorescent, for facilitating optical or visual inspection
H05K2203/161 (Using chemical substances) appears on 161 US grants and 142 published applications in this corpus.
Search patents in H05K- Granted patents
- 161
- Published applications
- 142
- Assignees
- 133
- Inventors
- 396
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 7 |
| 2002 | 6 | 6 |
| 2003 | 9 | 5 |
| 2004 | 4 | 11 |
| 2005 | 6 | 16 |
| 2006 | 8 | 17 |
| 2007 | 8 | 9 |
| 2008 | 7 | 8 |
| 2009 | 4 | 8 |
| 2010 | 5 | 8 |
| 2011 | 3 | 7 |
| 2012 | 5 | 6 |
| 2013 | 6 | 5 |
| 2014 | 4 | 5 |
| 2015 | 3 | 6 |
| 2016 | 5 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 5 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 3 | 2 |
| 2023 | 1 | 2 |
| 2024 | 2 | 3 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for making a lighting device10 Feb 2026US 12,550,264 B2Signify Holding B. V.
- Negative pressure wound treatment apparatuses and methods with integrated electronics29 Oct 2024US 12,128,170 B2Smith & Nephew, Inc.
- Printed circuit board configuration blocks and edge projections3 Sep 2024US 12,082,342 B2MACOM Technology Solutions Holdings, Inc.
- Negative pressure wound treatment apparatuses and methods with integrated electronics17 Jan 2023US 11,554,203 B2Smith & Nephew, Inc.
- System and method for service life management based on proactive remediation of corrosion enhancing defects22 Nov 2022US 11,506,633 B2Dell Products L. P.
- Light-Emitting Electronic Module for a Chip Card25 Jun 2026US 2026/0176526 A1
- Board inspection device and board inspection method12 Dec 2024US 2024/0414905 A1Ckd Corporation
- Method for preparing novel material layer structure of circuit board and article thereof22 Aug 2024US 2024/0284599 A1
- A method for making a lighting device25 Jan 2024US 2024/0032199 A1Signfy Holding B.V.
- Printed circuit board configuration blocks and edge projections21 Dec 2023US 2023/0413447 A1MACOM Technology Solutions Holdings, Inc.
Most cited
By later US patents
- Resin compositions and printed circuit boards using the same42US 5,589,250 AIbiden Co., Ltd. · 1996
- Electronic component operating temperature indicator38US 4,891,250 A1990
- Anisotropically electroconductive adhesive and adhesively bonded structure therewith38US 5,183,969 AShin-Etsu Polymer Co., Ltd. · 1993
- Integrated circuit packages with distinctive coloration38US 5,644,102 ALSI Logic Corporation · 1997
- Solvent resistant inks and coatings31US 4,267,088 A1981