







Headquartered within steps of the USPTO with an affiliate office in Tokyo, Oblon is one of the largest law firms in the United States focused exclusively on intellectual property law.

1968
Norman Oblon with Stanley Fisher and Marvin Spivak launched what was to become Oblon, McClelland, Maier & Neustadt, LLP, one of the nation's leading full-service intellectual property law firms.

Outside the US, we service companies based in Japan, France, Germany, Italy, Saudi Arabia, and farther corners of the world. Our culturally aware attorneys speak many languages, including Japanese, French, German, Mandarin, Korean, Russian, Arabic, Farsi, Chinese.

Oblon's professionals provide industry-leading IP legal services to many of the world's most admired innovators and brands.

From the minute you walk through our doors, you'll become a valuable part of a team that fosters a culture of innovation, client service and collegiality.

The United States Patent and Trademark Office (USPTO) issued final rules implementing the inventor's oath or declaration provisions of the America Invents Act (AIA) on August 14, 2012.
by Sana Tahir, Law Clerk and Andrew Ollis, Partner
May 7, 2026 at 10:30am and 8:00pm





Derek Mason was interviewed by Michael Keating for a blog post entitled "Tips for Safeguarding Your Products from Fakes," featured in Industrial Equipment News (IEN).
Industrial Equipment News
Every innovative pharma company faces the same challenge, how to delay the patent cliff. The existence of the "skinny viii" (21 U.S.C. § 355(j)(2)(A)(viii)) makes developing additional FDA approved indications unattractive from an LCM viewpoint.
Enzo Life Sciences, Inc. ("Enzo") appealed the decision of the U.S. District Court for the District of Delaware granting summary judgment against Enzo and holding that the asserted claims were invalid for lack of enablement. The Federal Circuit affirmed.
On July 16, 2019, the Patent Office published its 2019 Trial Practice Guide Update, a copy of which can be found here. This follows on the heels of last August's Trial Practice Guide Update (here) which, perhaps most importantly, provided patent owners with a sur-reply to petitioner's reply brief as a matter of right.
In denying the petition for rehearing en banc the majority of the Federal Circuit abdicated its responsibility to define the limits of the Supreme Court's Mayo decision. Judge Dyk on the 25th birthday of the Federal Circuit noted that:
On November 9, 2018, I wrote about the USPTO's release of interim procedures for patentees to request recalculation of the patent term adjustment with respect to information disclosure statements accompanied by a proper safe harbor statement under 37 CFR. 1.704(d) (http://www.lifesciencesipblog.com/?t=39&format=xml&A=18655&p=15972).
In January, 2019, the USPTO issued new guidance about what constitutes an abstract idea that is ineligible for protection under Section 101.
A good pun is always welcome when reading a legal opinion. Recently, in Return Mail v. U.S. Postal Service, neither snow nor rain nor heat nor gloom of night stopped U.S. Supreme Court Justice Sotomayor from dropping a well-placed pun in her majority opinion. Deep in the opinion at Section II(B), Sotomayor outlined the U.S. Postal Service's three arguments in three sentences. Of these arguments, her pithy conclusion is that "None delivers." Brilliant.
As all patent practitioners know, obviousness-type double patenting is a judicially created doctrine to prevent the unjust extension of patent term of follow on patents that are simply obvious variants of earlier patents.
During litigation or contested proceeding the patentee can point to commercial success of a product as evidence of non-obviousness of the claimed product. Although some work is necessary to show the nexus between the success in the market and the claimed invention, the evidence showing, for example, the product taking sales from competitive products could help the patentee's case.
