PTAB Nixes Previously Upheld Asphalt Patent

By Tiffany Hu (October 23, 2018, 6:25 PM EDT) -- The Patent Trial and Appeal Board on Tuesday invalidated a previously upheld Blacklidge Emulsions Inc. patent for applying an asphalt tack coat between layers of pavement that was challenged by Asphalt Products Unlimited Inc., with the board finding the claims to be obvious over prior art....

Law360 is on it, so you are, too.

A Law360 subscription puts you at the center of fast-moving legal issues, trends and developments so you can act with speed and confidence. Over 200 articles are published daily across more than 60 topics, industries, practice areas and jurisdictions.


A Law360 subscription includes features such as

  • Daily newsletters
  • Expert analysis
  • Mobile app
  • Advanced search
  • Judge information
  • Real-time alerts
  • 450K+ searchable archived articles

And more!

Experience Law360 today with a free 7-day trial.

Start Free Trial

Already a subscriber? Click here to login

Hello! I'm Law360's automated support bot.

How can I help you today?

For example, you can type:
  • I forgot my password
  • I took a free trial but didn't get a verification email
  • How do I sign up for a newsletter?
Ask a question!