Symantec wrings cash from Clearswift over patent

Antivirus software company Symantec paid US$62.5 million last year to acquire a controversial patent for scanning data. A settlement announced Friday with Clearswift indicates that the company isn't going to be shy about exercising its new ownership rights.

In a statement, Symantec said that it reached a settlement with Clearswift in a case involving Symantec's U.S. Patent No. 5,319,776, which covers computer hardware or software that scans data in transit between two 'mediums.' The two companies did not disclose the terms of the settlement, but it granted Clearswift a nonexclusive patent license for its security products.

Clearswift, of Theale, U.K., makes e-mail and Web communications security products including MIMEsweeper. The company had been involved in litigation over the patent with its previous owner, Hilgraeve Inc., makers of HyperTerminal and the HyperGuard antivirus technology.

Symantec inherited the case against Clearswift when it purchased the patent in August 2003 from Hilgraeve. Symantec purchased the patent after losing a protracted legal battle with Hilgraeve over its use of the patented process, dating back to 1997.

Symantec competitor McAfee, now Network Associates Inc., was sued at the same time as Symantec, but settled with Hilgraeve over the same issue in 2001, also for an undisclosed sum.

The settlement Friday resolves all litigation between Symantec and Clearswift, Symantec said.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Paul Roberts

IDG News Service
Show Comments

Cool Tech

Breitling Superocean Heritage Chronographe 44

Learn more >

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?