C09B 9/02
Esters or ester-salts of leuco compounds of vat dyestuffs: of anthracene dyes
Official title: of anthracene dyes
C09B9/02 (Esters or ester-salts of leuco compounds of vat dyestuffs: of anthracene dyes) appears on 8 US grants and 11 published applications in this corpus.
Search patents in C09B- Granted patents
- 8
- Published applications
- 11
- Assignees
- 5
- Inventors
- 14
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 7 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Method and composition for coloring a keratinous substrate using solubilized vat dyes24 Jun 2025US 12,337,053 B2Wella Germany GmbH
- Leuco colorants as bluing agents in laundry care compositions30 Jul 2024US 12,049,608 B2The Procter & Gamble Company
- Reactive leuco compounds and compositions comprising the same12 Apr 2022US 11,299,634 B2Milliken & Company
- Leuco polymers as bluing agents in laundry care compositions14 Jul 2020US 10,711,139 B2Milliken & Company
- Leuco colorants as bluing agents in laundry care compositions9 Jun 2020US 10,676,699 B2The Procter & Gamble Company
- Method and composition for coloring a keratinous substrate using solubilized vat dyes12 Oct 2023US 2023/0320964 A1Wella Germany GmbH
- Leuco polymers as bluing agents in laundry care compositions29 Oct 2020US 2020/0339815 A1Milliken & Company
- Actuated Electrode Lead in Minimally Invasive Cochlear Implant Surgery17 Sep 2020US 2020/0289825 A1MED-EL Elektromedizinische Geraete GmbH
- Leuco polymers as bluing agents in laundry care compositions7 Jun 2018US 2018/0155656 A1The Procter & Gamble Company
- Reactive leuco compounds and compositions comprising the same3 May 2018US 2018/0118942 A1Milliken & Company
Most cited
By later US patents
- Leuco polymers as bluing agents in laundry care compositions6US 10,479,961 B2The Procter & Gamble Company · 2019
- Leuco colorants as bluing agents in laundry care compositions5US 10,676,699 B2The Procter & Gamble Company · 2020
- Photo-curable composition, ink composition, and inkjet recording method using the ink composition2US 8,168,263 B2FUJIFILM Corporation · 2012