Advanced Fiber Technologies Trust v. J & L Fiber Services, Inc.
751 F. Supp. 2d 348
N.D.N.Y.2011Background
- AFT is a Canadian trust owning the '940 patent family; suit against J&L for infringement of screen plates used in pulp screening.
- The '072 patent issued 1993; AFT acquired it in 2002 and pursued reissue leading to RE 39,940 ('940 patent) in 2007.
- The accused device, J&L's V-Max screen cylinder, allegedly infringes the '940 patent via its screen assembly.
- Parties engaged in claim construction and multiple summary judgment motions, with discovery closed in 2009.
- Court construed key terms (screen plate, screening medium, perforated, etc.) and addressed infringement, validity, and willful infringement.
- Final orders granted in part/denied in part, and reconsideration motions addressed, including a separate later decision upholding dismissal of willful infringement as to all claims.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| How should key terms be construed? | AFT seeks broader, industry-specific meanings. | J&L urges ordinary or intrinsic meanings. | Court construes terms per intrinsic evidence; adopts J&L’s broader construction where warranted. |
| Does V-Max infringe claims 1, 10 and 18? | V-Max infringes the '940 patent claims. | V-Max may not meet all claim limitations. | Triable issues exist as to some elements; summary judgment of infringement denied as to main claims. |
| Is the '940 patent invalid for anticipation? | Claims are novel; not anticipated. | Prior art (Johnson Screens brochure, Yoshida, etc.) anticipates. | Anticipation shown as to some references but not to all asserted claims; discovery of certain references unresolved. |
| Is shrink-fit a structure under means-plus-function claims? | Shrink-fit constitutes a structural means. | Shrink-fit is a process, not a structure. | Shrink-fit is a process; not a claimed means; thus not a structural means. |
| Was willful infringement shown? | Willful infringement supported by pre-filing conduct and knowledge. | Non-willful; reasonable belief in non-infringement/invalidity. | Willfulness dismissed; no enhanced damages. |
Key Cases Cited
- Markman v. Westview Instruments, Inc., 517 U.S. 370 (1996) (claim construction is a matter of law using intrinsic evidence)
- Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (intrinsic evidence governs claim construction with extrinsic if needed)
- Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1582 (Fed. Cir. 1996) (intrinsic record usually dispositive for term meaning)
- SanDisk Corp. v. Memorex Prods., Inc., 415 F.3d 1278 (Fed. Cir. 2005) (establishes prejudice and timeliness in construction)
- Johnson & Johnston Assocs. v. R.E. Serv. Co., 285 F.3d 1046 (Fed. Cir. 2002) (disclosure-dedication rule limits equivalents )
- KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398 (2007) (obviousness requires reason to combine references)