G01R 31/309
Of printed or hybrid circuits or circuit substrates
Official title: of printed or hybrid circuits {or circuit substrates}
G01R31/309 (Of printed or hybrid circuits or circuit substrates) appears on 216 US grants and 104 published applications in this corpus.
Search patents in G01R- Granted patents
- 216
- Published applications
- 104
- Assignees
- 141
- Inventors
- 503
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 2 | 0 |
| 1995 | 11 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 3 |
| 2002 | 8 | 12 |
| 2003 | 9 | 7 |
| 2004 | 9 | 8 |
| 2005 | 2 | 3 |
| 2006 | 7 | 10 |
| 2007 | 4 | 4 |
| 2008 | 5 | 2 |
| 2009 | 2 | 2 |
| 2010 | 4 | 5 |
| 2011 | 1 | 3 |
| 2012 | 3 | 1 |
| 2013 | 3 | 4 |
| 2014 | 1 | 3 |
| 2015 | 2 | 2 |
| 2016 | 4 | 3 |
| 2017 | 2 | 5 |
| 2018 | 2 | 6 |
| 2019 | 6 | 2 |
| 2020 | 6 | 2 |
| 2021 | 4 | 7 |
| 2022 | 4 | 2 |
| 2023 | 2 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for rapid inspection of printed circuit board using multiple modalities14 Jul 2026US 12,681,080 B2Battelle Memorial Institute
- Solder mask fault fiber optics sensor3 Feb 2026US 12,543,261 B2Micron Technology, Inc.
- Radio frequency conduction test method and related apparatus without a radio frequency switch test socket1 Jul 2025US 12,345,761 B2Honor Device Co., Ltd.
- Systems and methods for high precision optical characterization of carrier transport properties in semiconductor manufacturing26 Mar 2024US 11,940,488 B2Xcalipr Corporation
- System and method for rapid inspection of printed circuit board using multiple modalities20 Feb 2024US 11,906,578 B2Battelle Memorial Institute
- System and method for rapid inspection of printed circuit board using multiple modalities8 Oct 2026US 2026/0309776 A1Battelle Memorial Institute
- Method for testing a packaging substrate, and apparatus for testing a packaging substrate13 Aug 2026US 2026/0235700 A1
- Solder mask fault fiber optics sensor14 May 2026US 2026/0136456 A1Micron Technology, Inc.
- High-speed electrical testing system applied to printed display panel16 Apr 2026US 2026/0104453 A1Fuzhou University
- Method of terminating unused ports during crosstalk measurement7 Aug 2025US 2025/0251447 A1The Curators of the University of Missouri
Most cited
By later US patents
- Inspection system for cross-sectional imaging201US 5,592,562 AInternational Business Machines Corporation · 1997
- Inspection system for cross-sectional imaging165US 5,719,952 AInternational Business Machines Corporation · 1998
- Multipurpose defect test structure with switchable voltage contrast capability and method of use114US 6,297,644 B1Advanced Micro Devices, Inc. · 2001
- Efficient image registration103US 5,548,326 ACognex Corporation · 1996
- Contactless test method for testing printed circuit boards101US 5,218,294 AAdvanced Test Technologies Inc. · 1993