130 Fed. Cl. 353
Fed. Cl.2017Background
- Hitkansut (owner) and Acceledyne (licensee) sued the United States under 28 U.S.C. § 1498, alleging Oak Ridge National Laboratory (DOE contractor) used a patented materials‑processing method (U.S. Patent No. 7,175,722, the ‘722 patent) that applies multiple energies concurrently (thermal + oscillatory) to change physical properties (e.g., stress relief).
- Inventor Donna Walker disclosed the method to Oak Ridge in 2003 under an NDA and demonstrated concurrent induction heating and vibration; Oak Ridge thereafter developed thermomagnetic processing (TMP) using induction heating plus a magnetic field and obtained related patents.
- The court previously resolved claim construction and some invalidity arguments; three claims remained at issue at trial (Claims 1, 6, 11). Trial occurred May–June 2016; post‑trial briefing and oral argument followed.
- Key contested legal issues at trial: whether Oak Ridge’s TMP literally infringed Claims 1, 6, and 11; and whether those claims were invalid for lack of patent‑eligible subject matter (§ 101), obviousness (§ 103), or lack of enablement (§ 112).
- The court found Oak Ridge’s TMP literally infringed Claims 1, 6, and 11, rejected the government’s invalidity defenses, and awarded "reasonable and entire compensation" of a $200,000 lump sum (the parties agreed an up‑front fee) plus prejudgment interest compounded semi‑annually at the 10‑year Treasury rate from issuance (Feb. 13, 2007).
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Infringement of Claims 1 & 6 (use of first/second energies, selection per first‑order/Larson‑Miller relationships, above activation energy; thermal + oscillatory) | Oak Ridge used induction thermal energy and an oscillatory (Lorentz/EMAT) energy concurrently; operational settings (time/temperature/field) were chosen based on empirical first‑order/Larson‑Miller plots and to achieve desired physical property values | Oak Ridge did not select settings "according to" first‑order/Larson‑Miller relationships or desired property values; oscillatory and thermal energy are the same source (AC induction) | Court: preponderance shows literal infringement of Claims 1 and 6 (operational settings selected by experimental/empirical first‑order/Larson‑Miller methods; energies are distinct) |
| Infringement of Claim 11 (determine Larson‑Miller relationship for concurrent energies) | Oak Ridge determined the concurrent relationship empirically (plots, log‑time fits) and selected settings accordingly | Oak Ridge did not "determine" or "know" a Larson‑Miller relationship for concurrent energies | Court: literal infringement of Claim 11 (claim construction allowed empirically derived Larson‑Miller relationships; Oak Ridge used such methods) |
| Patent‑eligible subject matter (§ 101) | The claims are directed to a practical, technological process that transforms physical structures more efficiently (analogous to Diehr), not to an abstract formula alone | The claims are directed to an algorithm/abstract idea (Larson‑Miller manipulation) and thus ineligible under Alice/Mayo | Court: claims not directed to ineligible subject matter; they recite a technological process (concurrent energies above activation energy) and contain an inventive application (step‑two Alice satisfied) |
| Obviousness (§ 103) | The combination of concurrent energies above an activation energy and use of a Larson‑Miller parameter to select settings was not taught or motivated by prior art; secondary considerations (unexpected results, copying by Oak Ridge, long‑felt need) support nonobviousness | Prior art taught concurrent/combined heating + vibration and taught Larson‑Miller time–temperature relationships; a person of skill would combine references | Court: government failed to prove obviousness (prior art did not teach exceeding activation energy to accelerate property change nor provide motivation to combine categories; secondary considerations weigh against obviousness) |
| Enablement (§ 112) | Specification (including exemplars and Larson‑Miller incorporation) enables one of ordinary skill to practice the claims without undue experimentation despite minor typographical/math errors | Patent contains errors and lacks sufficient guidance for the second (oscillatory) energy and breadth of claims, requiring undue experimentation | Court: claims enabled. Errors were correctable by those skilled in art; Wands factors do not show undue experimentation |
| Damages (reasonable and entire compensation under § 1498) | Hypothetical 2007 license would include $200,000 up‑front fee plus running royalties; Hitkansut sought ~$4.5–5.6M based on Oak Ridge $45M research funding base and higher royalty rate | Only the $200,000 up‑front fee is appropriate because TMP remained pre‑commercial; comparable pre‑commercial licenses support modest up‑front fees and future running royalties only upon commercialization | Court: award limited to $200,000 up‑front fee (agreed hypothetical term) plus prejudgment interest at the 10‑year Treasury note rate compounded semi‑annually; no award for future use or research funding as royalty base |
Key Cases Cited
- Diamond v. Diehr, 450 U.S. 175 (1981) (use of mathematical formula in inventive industrial process can be patent‑eligible)
- Alice Corp. Pty. Ltd. v. CLS Bank Int’l, 134 S. Ct. 2347 (2014) (two‑step test for patent‑eligibility of claims involving laws of nature/abstract ideas)
- Mayo Collaborative Servs. v. Prometheus Labs., 132 S. Ct. 1289 (2012) (framework for analyzing claims that rely on natural laws; search for an "inventive concept")
- Rapid Litig. Mgmt. Ltd. v. CellzDirect, Inc., 827 F.3d 1042 (Fed. Cir. 2016) (claims directed to a practical laboratory technique were not patent‑ineligible despite implicating natural phenomena)
- Graham v. John Deere Co., 383 U.S. 1 (1966) (framework for obviousness analysis and required Graham factual inquiries)
- KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398 (2007) (motivation to combine prior art and caution against hindsight in obviousness analysis)
- Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 535 U.S. 722 (2002) (prosecution history estoppel limits doctrine of equivalents when claims were narrowed to obtain allowance)
- Decca Ltd. v. United States, 640 F.2d 1156 (Ct. Cl. 1980) (section 1498 liability principles; government takes compulsory non‑exclusive license)