- All sections
- B - Performing operationstransporting
- B07B - Separating solids from solids by sieving, screening, sifting or by using gas currentsseparating by other dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
- B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
Patent holdings for IPC class B07B 1/46
Total number of patents in this class: 1149
10-year publication summary
|
81
|
70
|
89
|
102
|
84
|
86
|
74
|
61
|
65
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Derrick Corporation | 247 |
127 |
| M-I L.L.C. | 815 |
78 |
| National Oilwell Varco, L.P. | 1686 |
41 |
| United Wire Limited | 47 |
32 |
| Terex USA, LLC | 143 |
31 |
| Sandvik Intellectual Property AB | 1476 |
24 |
| Polydeck Screen Corporation | 34 |
16 |
| Schenck Process Australia Pty Limited | 30 |
14 |
| Verily Life Sciences LLC | 1587 |
14 |
| Voith Patent GmbH | 2768 |
14 |
| Sandvik SRP AB | 105 |
13 |
| Schlumberger Technology Corporation | 10868 |
11 |
| BASF SE | 20979 |
11 |
| Tega Industries Limited | 40 |
11 |
| Aikawa Fiber Technologies Oy | 19 |
10 |
| Superior Industries, Inc. | 213 |
10 |
| FLSmidth A/S | 773 |
10 |
| Lettela Pty Limited | 10 |
9 |
| CDE Global Limited | 76 |
8 |
| FP Canmechanica Inc. | 8 |
8 |
| Other owners | 657 |