- All sections
- B - Performing operations; transporting
- B07B - Separating solids from solids by sieving, screening, sifting or by using gas currents; separating 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 general; Cleaning or heating of screens
Patent holdings for IPC class B07B 1/46
Total number of patents in this class: 1116
10-year publication summary
|
97
|
84
|
102
|
117
|
93
|
101
|
86
|
66
|
64
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Derrick Corporation | 239 |
118 |
| M-I L.L.C. | 856 |
79 |
| National Oilwell Varco, L.P. | 1624 |
41 |
| United Wire Limited | 47 |
32 |
| Terex USA, LLC | 136 |
27 |
| Sandvik Intellectual Property AB | 1546 |
25 |
| FLSmidth A/S | 858 |
19 |
| Polydeck Screen Corporation | 36 |
18 |
| Schenck Process Australia Pty Limited | 43 |
17 |
| Voith Patent GmbH | 2734 |
14 |
| Sandvik SRP AB | 100 |
14 |
| Verily Life Sciences LLC | 1493 |
13 |
| Schlumberger Technology Corporation | 10217 |
11 |
| BASF SE | 20367 |
11 |
| Tega Industries Limited | 43 |
11 |
| Superior Industries, Inc. | 211 |
10 |
| Lettela Pty Limited | 10 |
9 |
| CDE Global Limited | 75 |
8 |
| FP Canmechanica Inc. | 8 |
8 |
| A O Ideas GmbH | 16 |
8 |
| Other owners | 623 |