- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 11/08 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
Patent holdings for IPC class G01N 11/08
Total number of patents in this class: 227
10-year publication summary
|
21
|
26
|
22
|
19
|
13
|
14
|
13
|
12
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rheosense, Inc. | 18 |
11 |
| Halliburton Energy Services, Inc. | 21306 |
8 |
| Saudi Arabian Oil Company | 14161 |
8 |
| Schlumberger Technology Corporation | 11767 |
4 |
| Weatherford Technology Holdings, LLC | 2152 |
4 |
| Danmarks Tekniske Universitet | 1023 |
4 |
| Dynisco Instruments LLC | 27 |
4 |
| Leistritz Extrusionstechnik GmbH | 20 |
4 |
| Haemograph Pty Ltd | 12 |
4 |
| Yokogawa Fluence Analytics, Inc. | 15 |
4 |
| Wyatt Technology, LLC | 166 |
4 |
| Schlumberger Canada Limited | 7605 |
3 |
| Malvern Instruments Incorporated | 7 |
3 |
| National Oilwell Varco, L.P. | 1699 |
3 |
| LogiLube, LLC | 14 |
3 |
| Schlumberger Technology B.v. | 5299 |
2 |
| Schlumberger Holdings Limited | 2707 |
2 |
| LG Chem, Ltd. | 17926 |
2 |
| Chevron U.S.A. Inc. | 4134 |
2 |
| The Administrators of the Tulane Educational Fund | 405 |
2 |
| Other owners | 146 |