Enfish, LLC v. Microsoft Corp.
56 F. Supp. 3d 1167
C.D. Cal.2014Background
- Enfish, LLC sued Microsoft and others (FIserv, Intuit, Sage, Jack Henry) for infringement of the '604 and '775 patents.
- The court previously invalidated certain '604 claims under 35 U.S.C. § 112(a) and other claims under § 102.
- Defendants moved for summary judgment arguing all asserted claims are ineligible under § 101.
- The patents describe a flexible, self-referential data table with rows (R), columns (C), and object IDs (OIDs), plus an index for searching.
- The court applies Mayo/Alice two-step framework to assess patent eligibility for software claims.
- The court grants summary judgment, holding all asserted claims fail § 101 eligibility.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether the asserted claims are directed to abstract ideas under §101. | Enfish claims store/organize memory in a logical table. | Claims recite abstract concepts implemented on a computer. | Yes, directed to abstract ideas. |
| Whether the claims contain an inventive concept to avoid an abstract idea. | Claims provide a novel self-referential table and indexing. | Limitations are conventional elements. | No inventive concept; unpatentable. |
Key Cases Cited
- Bilski v. Kappos, 561 U.S. 593 (2010) (abstract ideas and preemption concerns guiding eligibility)
- Mayo Collaborative Servs. v. Prometheus Labs., Inc., 132 S. Ct. 1289 (2012) (two-step Mayo framework for §101)
- Alice Corp. Pty. Ltd. v. CLS Bank Int’l, 134 S. Ct. 2347 (2014) (claims abstract ideas implemented on a computer require something more)
- Diamond v. Diehr, 450 U.S. 175 (1981) (considering purpose vs. novelty in abstractness analysis; importance of invention in context)
- Parker v. Flook, 437 U.S. 584 (1978) (caution against drafting-style attempts to save claims; emphasis on abstract idea preemption)
- Benson v. Gottschalk, 409 U.S. 63 (1972) (mathematical algorithms as non-patentable abstract ideas)