G01N 9/34
By using elements moving through the fluid
Official title: by using elements moving through the fluid, e.g. vane
G01N9/34 (By using elements moving through the fluid) appears on 34 US grants and 28 published applications in this corpus.
Search patents in G01N- Granted patents
- 34
- Published applications
- 28
- Assignees
- 30
- Inventors
- 74
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 4 | 0 |
| 2019 | 3 | 2 |
| 2020 | 0 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 3 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for measuring downhole mud flow density22 Jul 2025US 12,366,161 B2Baker Hughes Oilfield Operations LLC
- Method for filling and/or cleaning the measurement cell of a measuring instrument and measuring instrument13 May 2025US 12,298,206 B2Anton Paar GmbH
- Fluid property sensors having superimposed vibrations1 Apr 2025US 12,265,006 B2Rheonics GmbH
- Method for determining a measurement error caused by a filling error8 Nov 2022US 11,493,417 B2Eralytics GmbH
- Analyzing mixability of well cement slurries10 May 2022US 11,326,417 B2Halliburton Energy Services.Inc.
- Cascading density separators for facilitating density-based classification of particulate material12 Mar 2026US 2026/0070066 A1
- System and method for measuring downhole mud flow density23 Oct 2025US 2025/0327400 A1Baker Hughes Oilfield Operations LLC
- Mems densimeter16 Oct 2025US 2025/0321174 A1Rosemount Aerospace Inc.
- Fluid property sensors having superimposed vibrations13 Feb 2025US 2025/0052657 A1Rheonics GmbH
- Method for filling and/or cleaning the measurement cell of a measuring instrument and measuring instrument29 Jun 2023US 2023/0204467 A1Anton Paar GmbH
Most cited
By later US patents
- Method and apparatus for characterizing materials by using a mechanical resonator57US 6,494,079 B1Symyx Technologies, Inc. · 2002
- Liquid droplet dispensing37US 6,669,909 B2Allegro Technologies Limited · 2003
- Method and apparatus for characterizing materials by using a mechanical resonator28US 6,904,786 B2Symyx Technologies, Inc. · 2005
- Method and apparatus for characterizing materials by using a mechanical resonator25US 6,957,565 B2Symyx Technologies, Inc. · 2005
- Determination of steam quality in thermal injection wells21US 4,581,926 AShell Oil Company · 1986