Status report
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The official USPTO status record for CROSSFLOWEXPERT, serial 88770017, as a dated PDF. One price, one document, delivered in about a minute.
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Trademark Status Report
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The USPTO's own status record for this mark, on one dated page.
- Current status with a plain-English verdict
- Owner, classes, filing basis, and every key date
- The mark as it appears on the federal record
- Every prosecution event, filing to today
- Source-cited with the exact retrieval date
Built from the USPTO's TSDR record. Assignment chain of title and TTAB proceeding files sit in separate USPTO systems and are not included.
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◆ TRADEMARKCHECKER.AITRADEMARK STATUS REPORT
CROSSFLOWEXPERTSerial 88770017 · Principal Register
Live · Registered
Owner: WaterSep BioSeparations Corporation
Class 042 - Scientific & Technology Services
Filed Jan 22, 2020
Registered Nov 02, 2021
The record shows that “CROSSFLOWEXPERT” is a live, registered service mark owned by WaterSep BioSeparations Corporation, a Massachusetts corporation. The mark protects services in class 042, specifically providing a website with non‑downloadable software that helps biopharmaceutical users select hollow fiber cross‑flow membrane cartridges and obtain data on optimal cross‑flow filtration conditions. A similar name would raise the closest concern in the same niche of scientific and technology services related to cross‑flow filtration software. The record does not give the owner control over every use of the wording, only over the specified services. The mark is on the Principal Register, and the prosecution history shows a standard examination with a notice of allowance and a statement of use before registration. The latest event is the registration on November 2, 2021, with no subsequent enforcement actions recorded. For someone considering a similar name, the presence of this active registration in the same field suggests a meaningful risk of conflict.
Full event history, owner details, and verdict inside.
The way I'd use it, honestly, is as the thing you attach when a bank, a marketplace, or a co-founder asks "are we clear on the name". It answers in one page.