DENSIFIED ACTIVATED SLUDGE (DAS) Trademark
Trademark Overview
On Monday, July 13, 2026, a trademark application was filed for DENSIFIED ACTIVATED SLUDGE (DAS) with the United States Patent and Trademark Office. The USPTO has given the DENSIFIED ACTIVATED SLUDGE (DAS) trademark a serial number of 99937657. The federal status of this trademark filing is NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER as of Monday, July 13, 2026. This trademark is owned by Hazen and Sawyer, D.P.C.. The DENSIFIED ACTIVATED SLUDGE (DAS) trademark is filed in the Treatment & Processing of Materials Services and Computer & Software Services & Scientific Services categories with the following description:
Consulting in the field of water treatment; Water treatment services
Engineering, design, and engineering research in the fields of water and water treatment; Testing and evaluation in the fields of water and water treatment
General Information
| Serial Number | 99937657 |
| Word Mark | DENSIFIED ACTIVATED SLUDGE (DAS) |
| Filing Date | Monday, July 13, 2026 |
| Status | 630 - NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER |
| Status Date | Monday, July 13, 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
| Pseudo Mark | DENSIFIED ACTIVATED SLUDGE DAS |
| Goods and Services | Consulting in the field of water treatment; Water treatment services |
| Pseudo Mark | DENSIFIED ACTIVATED SLUDGE DENSIFIED ACTIVATED SLUDGE |
| Goods and Services | Engineering, design, and engineering research in the fields of water and water treatment; Testing and evaluation in the fields of water and water treatment |
Classification Information
| International Class | 040 - Treatment of materials. |
| US Class Codes | 100, 103, 106 |
| Class Status Code | 6 - Active |
| Class Status Date | Monday, July 13, 2026 |
| Primary Code | 040 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| International Class | 042 - Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software. |
| US Class Codes | 100, 101 |
| Class Status Code | 6 - Active |
| Class Status Date | Monday, July 13, 2026 |
| Primary Code | 042 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
Trademark Owner History
| Party Name | Hazen and Sawyer, D.P.C. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | New York, NY 10018
US |
Trademark Events
| Event Date | Event Description |
| Monday, July 13, 2026 | NEW APPLICATION ENTERED |
| Monday, July 13, 2026 | APPLICATION FILING RECEIPT MAILED |
