Wessel v. Energy Rentals Inc.

Wessel v. Energy Rentals Inc.

The '675 patent is valid (not obvious and not anticipated) and Energy Rentals' trailers infringe because they adopt the claimed lengthwise divided trailer carrying all power swivel components on one section such that, without drill collars, the trailer is sufficiently unbalanced to be unstable for highway travel; plaintiffs are entitled to judgment, a declaration of validity and infringement, injunction and costs.

Citation
2004 FC 791
Parties
Plaintiff: Warren Wessel; Plaintiff (defendant by Counterclaim): Westmen Oilfield Rentals (Alberta) Ltd.; Defendant (plaintiff by Counterclaim): Energy Rentals Inc.
Court
Federal Court
Jurisdiction
Canada
Judgment Date
31 May 2004
Procedural Posture
Patent Infringement (validation and Infringement of Canadian Patent No. 2,206,675) / Trial Judgment (federal Court)
Outcome
Judgment for plaintiffs (Warren Wessel and Westmen Oilfield Rentals (Alberta) Ltd.); defendant Energy Rentals Inc.'s counterclaim dismissed.
Legal Topics
Obviousness, Anticipation, Infringement, Claim Construction, Injunctive Relief, Assessment of Damages
Source Language
English
Intellectual Property Patent Law Commercial/contract Law Civil Procedure Obviousness Anticipation Infringement Claim Construction +2 more

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Parties

Warren Wessel

Plaintiff

Westmen Oilfield Rentals (Alberta) Ltd.

Plaintiff (defendant by Counterclaim)

Energy Rentals Inc.

Defendant (plaintiff by Counterclaim)

Procedural Posture

Patent Infringement (validation and Infringement of Canadian Patent No. 2,206,675) / Trial Judgment (federal Court)

Legal Issues

  1. 1 Is the '675 patent invalid for obviousness?
  2. 2 Is the '675 patent invalid for anticipation (prior use)?
  3. 3 Do Energy Rentals' trailers infringe the '675 patent?

Ratio Decidendi

The '675 patent is valid (not obvious and not anticipated) and Energy Rentals' trailers infringe because they adopt the claimed lengthwise divided trailer carrying all power swivel components on one section such that, without drill collars, the trailer is sufficiently unbalanced to be unstable for highway travel; plaintiffs are entitled to judgment, a declaration of validity and infringement, injunction and costs.

Court Disposition

Judgment for plaintiffs (Warren Wessel and Westmen Oilfield Rentals (Alberta) Ltd.); defendant Energy Rentals Inc.'s counterclaim dismissed.

Orders

  • Judgment in favour of the Plaintiffs
  • Declaration that Canadian patent No. 2,206,675 ('675 patent) is valid