Terumo BCT, Inc. v. Haemonetics Corporation
Patent Trial and Appeal Board
Holding
The Director granted Patent Owner Haemonetics's request for Director Review, vacated the Board's institution notices, and denied institution of IPR2025-01374 (U.S. Patent 11,738,124) and IPR2025-01391 (U.S. Patent 10,758,652), both involving blood-processing device technology. The Director found that Petitioner Terumo BCT took inconsistent claim construction positions—arguing 'plain and ordinary meaning' for the 'controller' term in its IPR petitions while simultaneously asserting § 112(f) means-plus-function indefiniteness for the same term in district court invalidity contentions filed one week after institution—without adequate explanation, in violation of 37 C.F.R. § 42.104(b)(3) and contrary to the Director's precedential Revvo and informative Tesla decisions. The Director exercised discretion to deny institution, reasoning that had this strategic litigation conduct occurred before institution, the IPRs would never have been instituted.
Why It Matters
Practitioners must ensure claim construction positions taken in IPR petitions are fully consistent with positions advanced in parallel district court proceedings, even for terms not directly 'in controversy' in the IPR; post-institution inconsistencies discovered through Director Review can result in vacatur of an already-granted institution. This decision signals that the Director will actively police forum-shopping and strategic inconsistency as a standalone basis for denial, independent of NHK-Fintiv or § 325(d) analysis.
- Written description, enablement and indefiniteness (§ 112) →
- Claim construction →
- PTAB discretionary denial →
- PTAB Director Review →
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