Fed. Circ. Says Machining Patent Violated Reissue Rules

By Matthew Bultman (June 17, 2019, 7:21 PM EDT) -- The Federal Circuit on Monday invalidated several claims that Flow Valve LLC added through the reissue process to a patent on a supporting assembly used during machining, finding the claims failed to meet the requirements of the "Original Patent" rule.

The appeals court, in a precedential opinion, affirmed an Oklahoma federal judge's February 2018 ruling in favor of rival oilfield products company Forum US Inc., which had brought a lawsuit seeking a judgment that the reissue claims are invalid.

"We must determine whether the new claims in the reissue patent comply with the original patent requirement. We hold that they do...

Stay ahead of the curve

In the legal profession, information is the key to success. You have to know what’s happening with clients, competitors, practice areas, and industries. Law360 provides the intelligence you need to remain an expert and beat the competition.


  • Access to case data within articles (numbers, filings, courts, nature of suit, and more.)
  • Access to attached documents such as briefs, petitions, complaints, decisions, motions, etc.
  • Create custom alerts for specific article and case topics and so much more!

TRY LAW360 FREE FOR SEVEN DAYS

Attached Documents

Related Sections

Case Information

Case Title

Subscribers Only

Case Number

Subscribers Only

Court

Subscribers Only

Nature of Suit

Subscribers Only

Judge

Subscribers Only

Date Filed

Subscribers Only

Law Firms

Companies

Government Agencies

Patents

Judge Analytics

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!