G01N 2291/045
External reflections
Official title: External reflections, e.g. on reflectors
G01N2291/045 (External reflections) appears on 173 US grants and 170 published applications in this corpus.
Search patents in G01N- Granted patents
- 173
- Published applications
- 170
- Assignees
- 145
- Inventors
- 429
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 4 |
| 2003 | 6 | 6 |
| 2004 | 4 | 6 |
| 2005 | 8 | 12 |
| 2006 | 8 | 7 |
| 2007 | 1 | 6 |
| 2008 | 9 | 2 |
| 2009 | 3 | 6 |
| 2010 | 2 | 4 |
| 2011 | 2 | 1 |
| 2012 | 3 | 4 |
| 2013 | 1 | 3 |
| 2014 | 3 | 8 |
| 2015 | 3 | 6 |
| 2016 | 7 | 10 |
| 2017 | 5 | 8 |
| 2018 | 8 | 7 |
| 2019 | 9 | 10 |
| 2020 | 9 | 13 |
| 2021 | 7 | 17 |
| 2022 | 13 | 13 |
| 2023 | 4 | 7 |
| 2024 | 10 | 3 |
| 2025 | 7 | 4 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wet gas holdup gas fraction and flow meter11 Aug 2026US 12,704,396 B2Saudi Arabian Oil Company
- High-temperature and high-pressure speed of sound apparatus and measuring the speed of sound in a sample at high-temperature and high-pressure28 Jul 2026US 12,693,266 B2Government of the United States of America, AS Represented By the Secretary of Commerce
- Surface acoustic wave sensor assembly5 May 2026US 12,620,962 B2APPLIED Materials.Inc.
- Apparatus for ultrasonically measuring thin film thickness with retroreflector and method thereof21 Apr 2026US 12,607,461 B2Center for Advanced Meta-Materials
- Apparatus for ultrasonically measuring thin film thickness with retroreflector and method thereof17 Mar 2026US 12,578,187 B2Center for Advanced Meta-Materials
- Dual ultrasonic detection device9 Apr 2026US 2026/0098835 A1ShenZhen KEWEI Neo_Tech Co.,Ltd.
- A measuring apparatus for inline measuring the homogenizing degree of a fluid product in a dispersing unit31 Jul 2025US 2025/0244292 A1
- Measuring device and method for analyzing a sample22 May 2025US 2025/0164450 A1
- Self-calibrated method of determining borehole fluid acoustic properties16 Jan 2025US 2025/0020058 A1Baker Hughes Oilfield Operations LLC
- Apparatus for measuring thin film thickness and method thereof16 Jan 2025US 2025/0020457 A1Center for Advanced Meta-Materials
Most cited
By later US patents
- Laser ultrasonics-based material analysis system and method using matched filter processing140US 5,604,592 ATextron Defense Systems, Division of Avco Corporation · 1997
- Laser ultrasonics-based material analysis system and method122US 5,638,396 ATextron Systems Corporation · 1997
- Method and apparatus for ultrasonic sizing of particles in suspensions82US 7,331,233 B2E. I. Du Pont de Nemours and Company · 2008
- Method and apparatus for ultrasonic sizing of particles in suspensions79US 7,010,979 B2E. I. Du Pont de Nemours and Company · 2006
- Device and method for detecting a substance of a liquid67US 7,468,608 B2Siemens Aktiengesellschaft · 2008