Landers v. Sideways
This disposition is not citable as precedent.
Landers patented a method and apparatus for horizontal well drilling. Landers provided drilling equipment to Sanders in exchange for royalties. The C.A.F.C. construed the term "cutter head" to not be means-plus-function because there was sufficient intrinsic evidence of structural. However, the court goes on to affirm non-infringement because the "saw blade" used by Sideways was not an equivalent structure merely because it was interchangable with the "cutter head".
Landers patented a method and apparatus for horizontal well drilling. Landers provided drilling equipment to Sanders in exchange for royalties. The C.A.F.C. construed the term "cutter head" to not be means-plus-function because there was sufficient intrinsic evidence of structural. However, the court goes on to affirm non-infringement because the "saw blade" used by Sideways was not an equivalent structure merely because it was interchangable with the "cutter head".
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