Bamberg v. Dalvey
815 F.3d 793
Fed. Cir.2016Background
- This appeal arises from consolidated interference No. 105,964 between Bamberg (senior party) and Dalvey (junior party) over copied claims directed to a method for transferring printed images to dark textiles using a multilayer transfer sheet (release layer, hot-melt adhesive, white layer, ink-receptive layer).
- Bamberg copied Dalvey’s claims into its applications to provoke interference; Dalvey moved to cancel Bamberg’s copied claims for lack of written description under 35 U.S.C. § 112.
- Dalvey’s specification (the originating disclosure) described white layers that melt across a wide temperature range (examples and express ranges including below and above 220°C); the Board gave the copied claims their broadest reasonable construction in light of Dalvey’s specification.
- Bamberg’s specification described a white background layer made of plastics and pigments “non-fusible at ironing temperatures (i.e., up to about 220°C),” and emphasized that melting at ironing temperatures was undesirable because it reduced clarity/resolution.
- The Board found (1) the Dalvey-derived claims encompass white layers that melt below 220°C, and (2) Bamberg’s specification lacks written description support for such embodiments; the Board also denied Bamberg’s motion to amend for failing to submit a claim chart as required by PTO interference rules.
- The Federal Circuit affirmed: it upheld the Board’s claim construction, found substantial evidence that Bamberg’s specification failed the § 112 written-description requirement, and held denial of the motion to amend was not an abuse of discretion.
Issues
| Issue | Bamberg's Argument | Dalvey's Argument | Held |
|---|---|---|---|
| Claim construction: scope of “white layer” | The white layer should be read as a non-melting, opaque background layer (i.e., remains opaque after application) | Claims copied from Dalvey must be construed in light of Dalvey’s specification, which includes melting white layers below 220°C | Court: Broadest reasonable construction in light of Dalvey allows white layers that melt above and below 220°C; Board’s construction affirmed |
| Written description (§ 112): whether Bamberg’s spec supports melting white layer | Bamberg contends its spec implicitly contemplates melting embodiments and a skilled artisan would understand melting variants are possible even if undesirable | Dalvey: Bamberg’s spec expressly teaches non-fusible white layer up to ~220°C and disparages melting below that temperature, so it lacks possession of melting embodiments | Court: Substantial evidence supports Board that Bamberg did not show possession of white layers melting <220°C; written description fails |
| Motion to amend: procedural sufficiency | Bamberg moved to amend claims but did not provide a required claim chart; argued amendment should be allowed | PTO/Board: Regulations require claim chart; failure shifts burden improperly and warrants denial | Court: Denial for failure to supply claim chart was not an abuse of discretion |
Key Cases Cited
- Agilent Techs., Inc. v. Affymetrix, Inc., 567 F.3d 1366 (Fed. Cir. 2009) (originating disclosure controls claim meaning in interferences and guides written-description review)
- Teva Pharm. U.S.A., Inc. v. Sandoz, Inc., 135 S. Ct. 831 (U.S. 2015) (deference framework for reviewing factual findings underlying claim construction)
- Harari v. Lee, 656 F.3d 1331 (Fed. Cir. 2011) (claims copied in interference receive broadest reasonable construction in light of originating disclosure)
- Ariad Pharm., Inc. v. Eli Lilly & Co., 598 F.3d 1336 (Fed. Cir. 2010) (written-description requirement: specification must show possession of the claimed invention)
- Tronzo v. Biomet, Inc., 156 F.3d 1154 (Fed. Cir. 1998) (specification that disparages broader subject matter supports narrow possession; inability to claim broader embodiments)
- Microsoft Corp. v. Proxyconn, Inc., 789 F.3d 1292 (Fed. Cir. 2015) (claim construction under broadest reasonable interpretation must be consistent with specification and skilled artisan understanding)