Hitkansut LLC, a Michigan Corporation, & Acceledyne Technologies, Ltd., LLC, a Michigan Corporation v. United States
114 Fed. Cl. 410
Fed. Cl.2013Background
- Patentees Hitkansut LLC and Acceledyne Technologies sue the United States under 28 U.S.C. § 1498(a) for infringement of U.S. Patent No. 7,175,722 related to concurrent multi-energy materials processing.
- The asserted claims include independent Claims 1, 7, 11, and 14; the court must construe disputed claim terms via Markman proceedings.
- Oak Ridge National Laboratory allegedly collaborated with private partners and later pursued related patent activity, leading Hitkansut to allege misuse of Walker’s process and related thermomagnetic work.
- A Markman hearing was held; only two claim terms had agreed constructions, and the court provisionally adopted constructions after evaluating intrinsic and extrinsic evidence.
- The court adopts certain constructions for 21 terms, including core terms like ‘structure,’ ‘energy,’ ‘operational setting,’ and the Larson–Miller framework; no extrinsic evidence is required for resolution.
- The court’s determination governs the scope of infringement remedies under § 1498(a) and resolves how the claimed methods are to be interpreted for purposes of infringement analysis.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| What is the proper construction of 'structure'? | Hitkansut: structure is a solid manufactured part. | U.S.: structure is any physical object capable of energy-induced change. | Structure means a physical object that has been constructed or manufactured and to which the claimed invention is applied. |
| What is the proper construction of 'energy'? | Energy is a type of work or heat; broader sense. | Energy is a source or sources of energy that can be applied, not limited to a single type. | Energy means the capacity to do work by various means, capable of acting on a structure. |
| What is the proper construction of 'performed concurrently for at least the time value' (Term 8)? | Concurrent application can include overlapping periods, even if one process starts before the other ends. | Energies must be performed simultaneously for a predetermined time. | Energies must be applied concurrently for at least a portion of the processing period. |
| What is the proper construction of 'Larson-Miller relationship' (Term 14) and related terms? | Larson-Miller can be represented by equations or empirical data; not limited to a strict equation. | Term 14 is limited to the Larson-Miller equation P = ΔH/R = T(C + log t) as asserted during prosecution. | Larson-Miller relationship means a parametric representation of the Larson-Miller relationship, which can take the equation or be represented by empirical data. |
| How should 'parameter' and related terms (Terms 13 and 19) relate to Larson-Miller representations? | Parameters map onto Larson-Miller relationships; encompass curve points or empirical data. | Plain meaning; separate concept tied to Larson-Miller equation. | Parameter means a point on the Larson-Miller curve or empirical data defining or deriving the curve. |
Key Cases Cited
- Markman v. Westview Instruments, Inc., 517 U.S. 370 (1996) (claim construction is a matter of law for the court)
- Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (intrinsic evidence governs claim construction; ordinary meaning as starting point)
- O2 Micro Int'l Ltd. v. Beyond Innovation Tech. Co., 521 F.3d 1351 (Fed. Cir. 2008) (claim construction standards; reliance on intrinsic evidence)
- Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576 (Fed. Cir. 1996) (firm framework for intrinsic evidence weighting in claim construction)