G01N 21/954
Inspecting the inner surface of hollow bodies
Official title: Inspecting the inner surface of hollow bodies, e.g. bores
G01N21/954 (Inspecting the inner surface of hollow bodies) appears on 714 US grants and 822 published applications in this corpus.
Search patents in G01N- Granted patents
- 714
- Published applications
- 822
- Assignees
- 426
- Inventors
- 1,769
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 2 |
| 2003 | 3 | 7 |
| 2004 | 5 | 14 |
| 2005 | 8 | 12 |
| 2006 | 5 | 11 |
| 2007 | 8 | 15 |
| 2008 | 7 | 14 |
| 2009 | 18 | 16 |
| 2010 | 2 | 7 |
| 2011 | 13 | 17 |
| 2012 | 6 | 27 |
| 2013 | 18 | 33 |
| 2014 | 22 | 49 |
| 2015 | 31 | 33 |
| 2016 | 40 | 59 |
| 2017 | 59 | 57 |
| 2018 | 42 | 54 |
| 2019 | 45 | 61 |
| 2020 | 65 | 41 |
| 2021 | 45 | 53 |
| 2022 | 42 | 50 |
| 2023 | 33 | 49 |
| 2024 | 53 | 47 |
| 2025 | 51 | 49 |
| 2026 | 32 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems22 Sep 2026US 12,743,014 B2Seescan, Inc.
- Centering aid for borescopes15 Sep 2026US 12,736,798 B2Lufthansa Technik AG
- Image processing apparatus and image processing method18 Aug 2026US 12,710,379 B2Medit Corp.
- Using force sensing to prevent borescope damage28 Jul 2026US 12,693,520 B2Baker Hughes Holdings LLC
- Testing tubular members21 Jul 2026US 12,687,501 B2Saudi Arabian Oil Company
- Endoscope system, information notification method, and recording medium1 Oct 2026US 2026/0298842 A1Evident Inspection Technologies Japan Corporation
- Substrate processing apparatus, substrate processing method, method of manufacturing semiconductor device and non-transitory computer-readable recording medium24 Sep 2026US 2026/0293589 A1Kokusai Electric Corporation
- Device for monitoring an engine surface, and a method for monitoring an engine surface10 Sep 2026US 2026/0266701 A1Cummins Inc.
- Apparatus for tire scanning and methods of using same10 Sep 2026US 2026/0266735 A13DM Devices Inc.
- Closed space monitoring system3 Sep 2026US 2026/0259035 A1Agat Co., Ltd.
Most cited
By later US patents
- Pipe inspection and repair system204US 6,820,653 B1Carnegie Mellon University · 2004
- Detachable coupling for a remote inspection device110US 7,384,308 B2Perceptron, Inc. · 2008
- Detachable coupling for a remote inspection device96US 7,581,988 B2Perceptron, Inc. · 2009
- Endoscope device91US 7,518,632 B2Olympus Corporation · 2009
- Optical probe and optical tomography system82US 7,539,362 B2FUJIFILM Corporation · 2009