TLSN
LIVE

Serial Number

99407272

Owner

Stiftung Ethereum (Foundation Ethereum)

Attorney

Elizabeth Baio

First Use Date

Mar 4, 2014

Filing Date

Sep 23, 2025

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TLSN Trademark

Serial Number: 99407272

TLSN is a trademark filed by Stiftung Ethereum (Foundation Ethereum) on September 23, 2025. The trademark is classified under Class 9 (Computers & Electronics), Class 41 (Education & Entertainment), Class 42 (Computer & Scientific). The application is currently pending registration.

Owner Contact Info

Stiftung Ethereum (Foundation Ethereum) (25 trademarks)

Zeughausgasse 7a

Entity Type: 99

Trademark Details

Filing Date

September 23, 2025

Registration Date

Not Registered

First Use Anywhere

March 4, 2014

First Use in Commerce

March 4, 2014

Goods & Services

Downloadable computer software development tools; downloadable computer programs, namely, downloadable compiler software, downloadable software for assembling and building construction models, downloadable visual development software for developing, building, and operating distributed applications and cryptographic applications on a blockchain and downloadable software applications for developing, building, and operating distributed applications and cryptographic applications on a blockchain in development environments; downloadable computer software development tools intended for use in creating applications and smart contracts, developing graphical user interfaces and providing data exchanges and communications between programs and computers in a distributed or networked environment; downloadable computer programs for use in the design, development, writing and commissioning of applications, general programs and smart contracts; downloadable computer software frameworks, namely, reusable software platforms for developing applications, products and software solutions; downloadable computer software for data and application modeling

Arranging and conducting of educational and business conferences in the field of blockchain technology

Providing software, namely, providing temporary use of non-downloadable utility programs for performing computer maintenance, for language processing and for interpretating processors, on computer networks on the Internet, and telecommunication networks; mobile data service, namely, hosting computer software applications of others; technical support services with respect to software, namely, troubleshooting of computer software problems; customer support services in relation to computer software, namely, troubleshooting of computer software problems; computer software maintenance services; computer programming; computer system analysis; software research, design and development services; providing online technical information with respect to computer technology; providing online information with respect to the design and development of computer hardware and software in the field of computer project management method; technical support services with respect to software in the form of online journals or blogs, namely, installation, administration, and troubleshooting of web and database applications in the field of online journals and blogs; consultation, advisory and information services relating to the aforesaid services, namely, IT consulting services, advisory services relating to software and product development and providing information in the fields of technology and software and product development via an on-line website; providing temporary use of non-downloadable software for use in the design and development of software on computer Internet networks, telecommunication networks and on mobile data networks in the field of technical information with respect to computers; temporary provision of non-downloadable software applications for creating and managing computer software programs accessible via a website; information technology (IT) consulting services relating to installation, maintenance and repair of computer software; computer software development

Filing History

WITHDRAWN FROM PUB - OG REVIEW QUERY
Jun 9, 2026 PBCR
APPROVED FOR PUB - PRINCIPAL REGISTER
May 18, 2026 CNSA
TEAS/EMAIL CORRESPONDENCE ENTERED
May 15, 2026 TEME
CORRESPONDENCE RECEIVED IN LAW OFFICE
May 15, 2026 CRFA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
May 15, 2026 TROA
NOTIFICATION OF NON-FINAL ACTION E-MAILED
Feb 18, 2026 GNRN
NON-FINAL ACTION E-MAILED
Feb 18, 2026 GNRT
NON-FINAL ACTION WRITTEN
Feb 18, 2026 CNRT
ASSIGNED TO EXAMINER
Feb 13, 2026 DOCK
ASSIGNED TO EXAMINER
Feb 12, 2026 DOCK
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Feb 10, 2026 NWOS
APPLICATION FILING RECEIPT MAILED
Sep 23, 2025 MAFR
NEW APPLICATION ENTERED
Sep 23, 2025 NWAP