- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 11/08 - Phthaleins
Patent holdings for IPC class C09B 11/08
Total number of patents in this class: 63
10-year publication summary
|
9
|
6
|
7
|
7
|
5
|
6
|
6
|
8
|
0
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| North Carolina State University | 1560 |
4 |
| F. Hoffmann-La Roche AG | 7930 |
2 |
| Hoffmann-La Roche Inc. | 3414 |
2 |
| The Regents of the University of California | 19898 |
2 |
| Dai Nippon Printing Co., Ltd. | 4081 |
2 |
| Biotix, Inc. | 181 |
2 |
| Boise State University | 118 |
2 |
| Erasmus University Medical Center Rotterdam | 338 |
2 |
| Promega Corporation | 571 |
2 |
| Provectus Pharmatech, Inc. | 49 |
2 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3145 |
2 |
| University of Tennessee Research Foundation | 758 |
2 |
| Versitech Limited | 369 |
2 |
| Waterguru Inc. | 12 |
2 |
| Abbott Laboratories | 2402 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
1 |
| Sabic Innovative Plastics IP B.V. | 681 |
1 |
| Purdue Research Foundation | 3601 |
1 |
| University of South Florida | 1821 |
1 |
| Afton Chemical Corporation | 483 |
1 |
| Other owners | 27 |