G01N 2291/263
Surfaces
G01N2291/263 (Surfaces) appears on 1,273 US grants and 1,186 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,273
- Published applications
- 1,186
- Assignees
- 697
- Inventors
- 2,919
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 14 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 12 | 0 |
| 1995 | 21 | 0 |
| 1996 | 20 | 0 |
| 1997 | 27 | 0 |
| 1998 | 20 | 0 |
| 1999 | 21 | 0 |
| 2000 | 32 | 0 |
| 2001 | 21 | 7 |
| 2002 | 29 | 24 |
| 2003 | 33 | 26 |
| 2004 | 25 | 35 |
| 2005 | 21 | 17 |
| 2006 | 12 | 28 |
| 2007 | 23 | 22 |
| 2008 | 14 | 33 |
| 2009 | 21 | 51 |
| 2010 | 22 | 38 |
| 2011 | 26 | 46 |
| 2012 | 42 | 34 |
| 2013 | 43 | 52 |
| 2014 | 30 | 53 |
| 2015 | 32 | 56 |
| 2016 | 41 | 47 |
| 2017 | 50 | 51 |
| 2018 | 49 | 82 |
| 2019 | 54 | 73 |
| 2020 | 65 | 80 |
| 2021 | 71 | 80 |
| 2022 | 83 | 73 |
| 2023 | 63 | 70 |
| 2024 | 67 | 49 |
| 2025 | 46 | 36 |
| 2026 | 28 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pipeline monitoring apparatus and method of use thereof29 Sep 2026US 12,748,080 B2
- Heat exchanger state sensing apparatus and method of use thereof29 Sep 2026US 12,748,081 B2
- High resolution imaging of pressurized water supply lines using high frequency acoustic waves8 Sep 2026US 12,730,030 B2The Hong Kong University of Science and Technology
- Determination of peaking of pipes8 Sep 2026US 12,730,094 B2NDT Global Corporate LTD.
- Support bed for impact measurements11 Aug 2026US 12,704,480 B2Grindosonic BV
- Detection of damage to components within an electrolyzer stack during operation8 Oct 2026US 2026/0308789 A1Fourier Earth, Inc.
- Apparatus for traversing a structure and determining positional data17 Sep 2026US 2026/0276594 A1
- Systems and methods for synchronizing rotational and translational motion with ultrasonic measurements17 Sep 2026US 2026/0276598 A1Hexagon Technology AS
- Acoustic Inspection Method and Apparatus Therefor10 Sep 2026US 2026/0266769 A1ICR Integrity Ltd
- Method For Detecting Cracks In A Tubular Pipe27 Aug 2026US 2026/0251618 A1Electricite de France
Most cited
By later US patents
- Method and apparatus for determining location of characteristics of a pipeline311US 6,243,657 B1PII North America, Inc. · 2001
- Apparatus and method for performing non-destructive inspections of large area aircraft structures201US 6,220,099 B1CE Nuclear Power LLC · 2001
- System, method and apparatus for the ultrasonic inspection of liquid filled tubulars and vessels189US 5,619,423 A1997
- Ultrasonic probe assembly and cable therefor183US 5,398,689 AHewlett-Packard Company · 1995
- Gas main robotic inspection system178US 6,917,176 B2Carnegie Mellon University · 2005