Federal Circuit Reverses Obviousness Ruling on Medical Device Patents

Sep 9, 2015

Reading Time : 1 min

In 2011, Ivera sued Hospira for patent infringement in the U.S. District Court for the Southern District of California. Ivera’s patents are related to caps used for medical devices. The caps are filled with a cleaning agent to prevent the spread of infectious agents and include vents to relieve pressure and permit evaporation. Hospira alleged that Ivera’s patents would be obvious in view of the prior art that disclosed an antiseptic cap for medical devices and the benefits of venting a cap for medical devices.

The district court granted summary judgment to Hospira, ruling that it would be obvious to add vents to a cap to arrive at the claimed invention. The district court concluded that skilled artisans would not “need the benefit of hindsight to realize that adding a vent would relieve possible pressure on the inside of the cap,” finding there to be

“little difference” between the prior art and Ivera’s invention except for the vent. The Federal Circuit disagreed, finding that Ivera had presented persuasive expert declarations that persons skilled in the art would have desired fluid­tight caps without vents at the time of the invention, creating a genuine factual dispute precluding summary judgment.

Ivera Medical Corporation v. Hospira, Inc., No. 2014­1613, ­1614 (Fed. Cir. Sept. 8, 2015).

Share This Insight

Previous Entries

IP Newsflash

February 24, 2026

The Southern District of Florida recently dismissed a complaint without prejudice because the allegations used a form of “shotgun pleading.” The court explained that a shotgun pleading includes those where every count incorporates every preceding paragraph into each cause of action, and that dismissal of such pleadings was required under Eleventh Circuit precedent.

...

Read More

IP Newsflash

February 20, 2026

The Federal Circuit recently addressed whether the PTO must conduct notice‑and‑comment rulemaking before issuing instructions that guide how the Board should exercise discretion at the institution stage of IPRs. The court held that no such rulemaking is required. Instructions to the Board regarding its use of the Director’s delegated discretionary authority not to institute review are merely general statements of policy exempt from notice-and-comment rulemaking.  

...

Read More

IP Newsflash

February 18, 2026

The District Court for the District of Delaware recently invalidated claims directed to a panoramic objective lens for lack of enablement, holding the claims impermissibly recited a single element in means‑plus‑function form. Under § 112, ¶ 6, “[a]n element in a claim for a combination may be expressed as a means or step for performing a specified function….” By its plain terms, the statute permits means‑plus‑function claiming only in the context of a “combination.” In other words, a claim may not consist solely of a single means‑plus‑function element. Claims drafted as a single means are invalid for lack of enablement as a matter of law.

...

Read More

IP Newsflash

February 13, 2026

In an ANDA litigation, the District of Delaware recently denied the defendants’ motion to compel the production of correspondence between the plaintiffs’ testifying expert and a third-party analyst who had performed experiments and provided data used by the testifying expert. The court found that the scope of material sought by the motion was overbroad and disproportionate to the needs of the case.

...

Read More

© 2026 Akin Gump Strauss Hauer & Feld LLP. All rights reserved. Attorney advertising. This document is distributed for informational use only; it does not constitute legal advice and should not be used as such. Prior results do not guarantee a similar outcome. Akin is the practicing name of Akin Gump LLP, a New York limited liability partnership authorized and regulated by the Solicitors Regulation Authority under number 267321. A list of the partners is available for inspection at Eighth Floor, Ten Bishops Square, London E1 6EG. For more information about Akin Gump LLP, Akin Gump Strauss Hauer & Feld LLP and other associated entities under which the Akin Gump network operates worldwide, please see our Legal Notices page.