- All sections
- B - Performing operations; transporting
- B44C - Producing decorative effects; mosaics; tarsia work; paperhanging
- B44C 1/22 - Removing surface-material, e.g. by engraving, by etching
Patent holdings for IPC class B44C 1/22
Total number of patents in this class: 1516
10-year publication summary
|
139
|
161
|
98
|
74
|
49
|
41
|
44
|
33
|
32
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 11599 |
98 |
| Lam Research Corporation | 4775 |
63 |
| Applied Materials, Inc. | 16587 |
57 |
| JPMorgan Chase Bank, National Association | 10964 |
42 |
| Micron Technology, Inc. | 24960 |
28 |
| Samsung Electronics Co., Ltd. | 131630 |
27 |
| Apple Inc. | 50209 |
25 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
25 |
| Kioxia Corporation | 9847 |
18 |
| UNILIN, besloten vennootschap | 599 |
17 |
| Hitachi High-Tech Corporation | 4424 |
15 |
| Headway Technologies, Inc. | 715 |
14 |
| Corning Incorporated | 9932 |
14 |
| Levi Strauss & Co. | 333 |
14 |
| CMC Materials LLC | 254 |
14 |
| Screen Holdings Co., Ltd. | 2431 |
13 |
| Trinity Industrial Corporation | 124 |
13 |
| Seagate Technology LLC | 4228 |
12 |
| Hueck Rheinische GmbH | 95 |
11 |
| Samsung Display Co., Ltd. | 30585 |
9 |
| Other owners | 987 |