KEELFLOW Trademark
Trademark Overview
On Thursday, January 29, 2026, a trademark application was filed for KEELFLOW with the United States Patent and Trademark Office. The USPTO has given the KEELFLOW trademark a serial number of 99621662. The federal status of this trademark filing is NON-FINAL ACTION - MAILED as of Tuesday, June 2, 2026. This trademark is owned by Delta T Thermal Solutions, LLC. The KEELFLOW trademark is filed in the Environmental Control Instrument Products category with the following description:
heat transfer units consisting of plates or tubing so embossed or extruded as to contain internal passes or fluid flow directors, and used in marine engines or internal marine boat on-board processes; heat transfer units, namely, cooling systems, heating systems, and temperature management systems for industrial and marine use; heat exchangers not being parts of machines; heat exchangers for vessels also known as keel coolers; machines, namely, heat exchangers and heat transfer units; external cooling system for marine engines, namely, heat exchangers
General Information
| Serial Number | 99621662 |
| Word Mark | KEELFLOW |
| Filing Date | Thursday, January 29, 2026 |
| Status | 641 - NON-FINAL ACTION - MAILED |
| Status Date | Tuesday, June 2, 2026 |
| Registration Number | 0000000 |
| Registration Date | NOT AVAILABLE |
| Mark Drawing | 4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form |
| Published for Opposition Date | NOT AVAILABLE |
Trademark Statements
| Goods and Services | heat transfer units consisting of plates or tubing so embossed or extruded as to contain internal passes or fluid flow directors, and used in marine engines or internal marine boat on-board processes; heat transfer units, namely, cooling systems, heating systems, and temperature management systems for industrial and marine use; heat exchangers not being parts of machines; heat exchangers for vessels also known as keel coolers; machines, namely, heat exchangers and heat transfer units; external cooling system for marine engines, namely, heat exchangers |
| Pseudo Mark | KEEL FLOW |
Classification Information
| International Class | 011 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply, and sanitary purposes. |
| US Class Codes | 013, 021, 023, 024, 031, 034 |
| Class Status Code | 6 - Active |
| Class Status Date | Thursday, January 29, 2026 |
| Primary Code | 011 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
Trademark Owner History
| Party Name | Delta T Thermal Solutions, LLC |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Wichita Falls, TX 76306
US |
Trademark Events
| Event Date | Event Description |
| Thursday, January 29, 2026 | NEW APPLICATION ENTERED |
| Thursday, January 29, 2026 | APPLICATION FILING RECEIPT MAILED |
| Thursday, May 21, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Wednesday, May 27, 2026 | ASSIGNED TO EXAMINER |
| Tuesday, June 2, 2026 | NON-FINAL ACTION WRITTEN |
| Tuesday, June 2, 2026 | NON-FINAL ACTION E-MAILED |
| Tuesday, June 2, 2026 | NOTIFICATION OF NON-FINAL ACTION E-MAILED |
