Patents
US 12612350 B2: Ozonolysis of polycyclic aromatic hydrocarbons in liquid CO2
- Granted
- 2026-04-28
- Filed
- 2021-01-13 application 18271735
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods are provided for ozonolysis of polycyclic aromatic hydrocarbons (PAHs) in a liquid CO2 reaction environment. It has been unexpectedly discovered that oxygen-containing functional groups can be added to PAH substrates while substantially avoiding combustion reactions and while reducing or minimizing formation of energetic intermediates. Because the formation of energetic intermediates is minimal, the ozonolysis can be performed at temperatures near ambient (e.g., between −10° C. and 50° C.) while still achieving a satisfactory safety profile. In various aspects, ozonolysis can occur while forming a reduced or minimized amount of water, such as forming substantially no water in the reaction environment.
Source: PTBLXML, file of 2026-04-28 (ipgb20260428.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Kansas 437 patents | US company or organization | Lawrence, KS | University of Kansas College or university EXACT high confidence: identical full name and state UNIVERSITY OF KANSAS Federal lobbying client EXACT high confidence: identical full name and state | PTBLXML, file of 2026-04-28 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Huaxing Zhou | Warwick, PA | PTBLXML, file of 2026-04-28 | ||
| Abhimanyu O. Patil | Westfield, NJ | PTBLXML, file of 2026-04-28 | ||
| Bala Subramaniam | Lawrence, KS | 48 | PTBLXML, file of 2026-04-28 | |
| Timothy A. Jackson | Lawrence, KS | 9 | PTBLXML, file of 2026-04-28 | |
| Andrew M. Danby | Bishop Wilton, GB | 8 | PTBLXML, file of 2026-04-28 | |
| Honghong Shi | Lawrence, KS | PTBLXML, file of 2026-04-28 | ||
| Michael D. Lundin | Lawrence, KS | 3 | PTBLXML, file of 2026-04-28 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C07C | Acyclic or carbocyclic compounds | C07C45/40 | PTBLXML, file of 2026-04-28 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-02-27 | Assignment Assignment of assignor's interest | DANBY, ANDREW M. signed 2023-11-30 LUNDIN, MICHAEL D. signed 2023-11-20 SUBRAMANIAM, BALA signed 2023-12-05 JACKSON, TIMOTHY A. signed 2024-02-12 SHI, HONGHONG signed 2023-11-27 | UNIVERSITY OF KANSAS LAWRENCE, KS | 66577/947 | PASDL, file of 2026-10-15 |
| 2023-11-13 | Assignment Assignment of assignor's interest | EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY signed 2023-06-05 | UNIVERSITY OF KANSAS LAWRENCE, KS | 65537/638 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.