PersonalWeb Technologies LLC v. Google LLC.

Background

PersonalWeb Technologies LLC asserted claims from three patents: U.S. Patent Nos. 7,802,310 (the ’310 patent), 6,415,280 (the ’280 patent), and 7,949,662 (the ’662 patent). PersonalWeb alleged that Google/YouTube, Facebook, EMC, VMware, and other defendants infringed claims involving content-based identifiers for computer data.

The patents generally described using a hash or message-digest function to create an identifier based on a file’s contents. The ’310 patent concerned using such identifiers to control access to data. The ’280 patent concerned retrieving and delivering data from networked servers. The ’662 patent concerned identifying duplicate data and deleting one copy when another copy was available.

The defendants moved for judgment on the pleadings under Federal Rule of Civil Procedure 12(c), arguing that the asserted patent claims were invalid under 35 U.S.C. § 101 because they covered abstract ideas. PersonalWeb opposed the motion and argued that the claims were not abstract. PersonalWeb also asked the court to treat the motion as one for summary judgment so the court could consider a declaration from its expert, Dr. Samuel Russ.

Conversion to Summary Judgment

The court denied PersonalWeb’s request to convert the motion. It explained that only the nonmoving party had submitted evidence that was not subject to judicial notice, and that the defendants had not received notice that the motion would be converted. The court also found the motion timely and stated that Dr. Russ’s declaration would not be used.

Patent-Eligibility Framework

Section 101 allows patents for new and useful processes, machines, manufactures, compositions of matter, and improvements, but it excludes abstract ideas, laws of nature, and natural phenomena. Applying the two-step framework from Alice and Mayo, the court first asked whether the claims were directed to an abstract idea. If so, it then asked whether the claims contained an “inventive concept”—additional elements that transformed the abstract idea into a patent-eligible invention rather than merely applying it with conventional technology.

Court’s Analysis

At the first step, the court characterized the asserted claims as a three-part process: using a content-based identifier generated by a hash or message-digest function, comparing that identifier with another identifier or request, and then providing access to, denying access to, or deleting data. The court held that collecting, comparing, and controlling access to information are abstract concepts.

The court rejected PersonalWeb’s argument that the patents claimed a specific improvement in computer data management. It found that the patents were broadly directed to making data storage and management more efficient, rather than to a particular new computer system or a specific technological solution. In the court’s view, applying a known hashing technique to data-management functions did not make the claims non-abstract.

At the second step, the court held that the claims lacked an inventive concept. It found that hash identifiers, comparisons, access restrictions, de-duplication, processors, and computer networks were generic, routine, or conventional components and functions. Using those elements together did not transform the abstract data-management concepts into patent-eligible subject matter.

Disposition

The court granted the defendants’ motion for judgment on the pleadings and held the ’310, ’280, and ’662 patents invalid for failure to satisfy Section 101. Because the issue was legal and amendment would be futile, the court stated that leave to amend would be denied; it also noted that PersonalWeb had not requested leave to amend. The Clerk was directed to close the file, and judgment in favor of the defendants was ordered.