G01R 31/2805
Bare printed circuit boards
Official title: {Bare printed circuit boards}
G01R31/2805 (Bare printed circuit boards) appears on 235 US grants and 123 published applications in this corpus.
Search patents in G01R- Granted patents
- 235
- Published applications
- 123
- Assignees
- 149
- Inventors
- 480
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 5 |
| 2002 | 11 | 9 |
| 2003 | 5 | 3 |
| 2004 | 10 | 3 |
| 2005 | 0 | 10 |
| 2006 | 8 | 3 |
| 2007 | 6 | 6 |
| 2008 | 3 | 6 |
| 2009 | 4 | 5 |
| 2010 | 6 | 6 |
| 2011 | 4 | 7 |
| 2012 | 1 | 4 |
| 2013 | 10 | 3 |
| 2014 | 1 | 9 |
| 2015 | 1 | 8 |
| 2016 | 8 | 3 |
| 2017 | 5 | 2 |
| 2018 | 4 | 2 |
| 2019 | 6 | 2 |
| 2020 | 4 | 4 |
| 2021 | 2 | 4 |
| 2022 | 6 | 8 |
| 2023 | 4 | 4 |
| 2024 | 5 | 2 |
| 2025 | 3 | 4 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for automated, artificial intelligence based monitoring of, and/or alerting for, digital out of home display units14 Jul 2026US 12,682,798 B1Manufacturing Resources International, Inc.
- Transverse magnetic mode split post dielectric resonator23 Jun 2026US 12,665,278 B2The Curators of the University of Missouri
- Form factor equivalent load testing device24 Feb 2026US 12,560,646 B2Progranalog Corp.
- Device for and method of frequency testing printed circuit board under thermal stress8 Jul 2025US 12,352,803 B2Raytheon Company
- High-bandwidth coaxial interface test fixture1 Jul 2025US 12,345,778 B2NVIDIA Corporation
- Form factor equivalent load testing device2 Jul 2026US 2026/0186047 A1Progranalog Corp.
- Evaluating copper plating in a pth25 Dec 2025US 2025/0389764 A1International Business Machines Corporation
- System and method for detecting defective back-drills in printed circuit boards13 Mar 2025US 2025/0085332 A1R&D Circuits, Inc.
- Device for and method of frequency testing printed circuit board under thermal stress27 Feb 2025US 2025/0067792 A1Raytheon Company
- Transverse magnetic mode split post dielectric resonator27 Feb 2025US 2025/0070443 A1The Curators of the University of Missouri
Most cited
By later US patents
- Printed circuit board testing means154US 3,970,934 A1976
- Resonator, printed board, and method for measuring complex dielectric constant119US 7,952,365 B2NEC Corporation · 2011
- System for inspecting pattern defects of printed wiring boards112US 4,799,175 ADainippon Screen Mfg.Co., Ltd. · 1989
- Apparatus and method for testing circuit boards92US 4,528,500 A1985
- Method and apparatus for testing of electrical interconnection networks87US 4,565,966 AKollmorgen Technologies Corporation · 1986