G01N 2291/04
Wave modes and trajectories
G01N2291/04 (Wave modes and trajectories) appears on 4,142 US grants and 3,440 published applications in this corpus.
Search patents in G01N- Granted patents
- 4,142
- Published applications
- 3,440
- Assignees
- 1,893
- Inventors
- 8,258
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 18 | 0 |
| 1978 | 26 | 0 |
| 1979 | 21 | 0 |
| 1980 | 17 | 0 |
| 1981 | 31 | 0 |
| 1982 | 22 | 0 |
| 1983 | 20 | 0 |
| 1984 | 35 | 0 |
| 1985 | 22 | 0 |
| 1986 | 36 | 0 |
| 1987 | 36 | 0 |
| 1988 | 25 | 0 |
| 1989 | 32 | 0 |
| 1990 | 39 | 0 |
| 1991 | 43 | 0 |
| 1992 | 56 | 0 |
| 1993 | 48 | 0 |
| 1994 | 52 | 0 |
| 1995 | 70 | 0 |
| 1996 | 72 | 0 |
| 1997 | 65 | 0 |
| 1998 | 87 | 0 |
| 1999 | 81 | 0 |
| 2000 | 93 | 0 |
| 2001 | 96 | 21 |
| 2002 | 107 | 75 |
| 2003 | 101 | 111 |
| 2004 | 90 | 124 |
| 2005 | 110 | 143 |
| 2006 | 104 | 169 |
| 2007 | 104 | 163 |
| 2008 | 100 | 144 |
| 2009 | 89 | 161 |
| 2010 | 124 | 120 |
| 2011 | 108 | 103 |
| 2012 | 115 | 121 |
| 2013 | 112 | 92 |
| 2014 | 92 | 114 |
| 2015 | 92 | 173 |
| 2016 | 90 | 144 |
| 2017 | 132 | 148 |
| 2018 | 120 | 164 |
| 2019 | 161 | 186 |
| 2020 | 176 | 204 |
| 2021 | 149 | 209 |
| 2022 | 208 | 184 |
| 2023 | 156 | 139 |
| 2024 | 161 | 116 |
| 2025 | 121 | 74 |
| 2026 | 55 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 2291/042Wave modesIndexing code2,289
- G01N 2291/044Internal reflectionsIndexing code1,724
- G01N 2291/048Transmission, i.e. analysed material between transmitter and receiverIndexing code522
- G01N 2291/045External reflectionsIndexing code173
- G01N 2291/056Angular incidence, angular propagationIndexing code161
- G01N 2291/051Perpendicular incidence, perpendicular propagationIndexing code53
- G01N 2291/057Angular incidence, parallel to surface propagationIndexing code28
- G01N 2291/052Perpendicular incidence, angular propagationIndexing code7
Recent patents
- Defect sizing combining fixed wavelength and variable wavelength guided waves29 Sep 2026US 12,748,079 B2Innerspec Technologies, Inc.
- Acoustic influence map based flaw size imaging25 Aug 2026US 12,716,871 B2Evident Canada, Inc.
- Non-contact ultrasound viscoelastic spectroscopy25 Aug 2026US 12,716,873 B2University of Southern California
- Multiplexing surface acoustic wave sensors with delay line coding18 Aug 2026US 12,710,397 B2Aviana Molecular Technologies, LLC
- Method and apparatus for determining the set of focal laws of a plurality of focal points located in a three-dimensional test object in the presence of a coupling medium18 Aug 2026US 12,710,398 B2Consejo Superior De Investigaciones CientíFicas (Csic) M
- System and method for acoustic spectroscopy for fluid measurement1 Oct 2026US 2026/0298880 A1Petroleo Brasileiro S.A. - Petrobras
- Systems integration of a surface acoustic wave biosensor for point-of-care-diagnostic use24 Sep 2026US 2026/0287555 A1Aviana Molecular Technologies, LLC
- Artificial intelligence-based internal defect detection system for concrete members17 Sep 2026US 2026/0276604 A1Seoul National University R&Db Foundation
- Processing chambers for cleaning and inspection of bonded substrates and related methods27 Aug 2026US 2026/0251617 A1APPLIED Materials.Inc.
- Method For Detecting Cracks In A Tubular Pipe27 Aug 2026US 2026/0251618 A1Electricite de France
Most cited
By later US patents
- Ultra-thin acoustic transducer and balloon catheter using same in imaging array subassembly688US 4,841,977 AInter Therapy, Inc. · 1989
- Microfabricated reactor427US 5,639,423 AThe Regents of the University of Calfornia · 1997
- Concurrent ultrasonic weld evaluation system357US 4,712,722 AEG&G, Inc. · 1987
- Ultrasound beam alignment servo310US 5,844,140 A1998
- Microfabricated reactor293US 5,674,742 AThe Regents of the University of California · 1997