- All sections
- B - Performing operations; transporting
- B66C - Cranes; load-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 1/28 - Duplicate, e.g. pivoted, members engaging the loads from two sides
Patent holdings for IPC class B66C 1/28
Total number of patents in this class: 75
10-year publication summary
|
4
|
7
|
12
|
6
|
11
|
1
|
7
|
6
|
6
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 19843 |
5 |
| Daifuku Co., Ltd. | 860 |
5 |
| Kubota Corporation | 3054 |
4 |
| Murata Machinery, Ltd. | 1386 |
4 |
| Cascade Corporation | 200 |
3 |
| ConXtech, Inc. | 89 |
3 |
| LaValley Industries, LLC | 69 |
3 |
| Newt 42 Investment Trust | 3 |
3 |
| Justoy Pty Ltd. | 38 |
2 |
| Lange Originals LLC | 7 |
2 |
| Huhtaware Oy | 2 |
2 |
| Chester Brown Industries Pty Ltd | 6 |
2 |
| The Sherwin-Williams Company | 553 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
1 |
| Delta Electronics, Inc. | 2401 |
1 |
| Chevron U.S.A. Inc. | 3774 |
1 |
| Kawasaki Heavy Industries, Limited | 1524 |
1 |
| Nippon Telegraph and Telephone Corporation | 14195 |
1 |
| Other owners | 29 |