| Serial Number | 99340236 |
| Word Mark | STERFLOW XFR |
| Filing Date | Friday, August 15, 2025 |
| Status | 686 - PUBLISHED FOR OPPOSITION |
| Status Date | Tuesday, February 10, 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 | Tuesday, February 10, 2026 |
| Goods and Services | Chemicals for use as friction reducers for use in hydraulic fracturing, enhanced oil recovery, and treatment of oil sands tailings, water and industrial effluent; polymers for chemical enhanced oil recovery; flocculants; polymer flocculants; polymers for use in underground fluids for hydraulic fracking |
| Pseudo Mark | STERLING FLOW |
| International Class | 001 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins; unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. |
| US Class Codes | 001, 005, 006, 010, 026, 046 |
| Class Status Code | 6 - Active |
| Class Status Date | Friday, August 15, 2025 |
| Primary Code | 001 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| Party Name | Sterling Specialty Chemicals Holding UK Limited |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 99 - Other |
| Address | Harrow, Middlesex HA1 1BE GB |
| Party Name | Sterling Specialty Chemicals Holding UK Limited |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 99 - Other |
| Address | Harrow, Middlesex HA1 1BE GB |
| Event Date | Event Description |
| Friday, August 15, 2025 | NEW APPLICATION ENTERED |
| Friday, August 15, 2025 | APPLICATION FILING RECEIPT MAILED |
| Tuesday, January 6, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Wednesday, January 7, 2026 | ASSIGNED TO EXAMINER |
| Thursday, January 8, 2026 | ASSIGNED TO EXAMINER |
| Tuesday, January 13, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, February 4, 2026 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, February 10, 2026 | PUBLISHED FOR OPPOSITION |
| Tuesday, February 10, 2026 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |