Western Oilfield Equipment Rentals Ltd. v. M-I LLC

Western Oilfield Equipment Rentals Ltd. v. M-I LLC

The judge construed the patent from the perspective of a skilled person (five years' experience with shale shakers), interpreted key terms (slurry includes wet cuttings; 'first screen' denotes the screen to which a pressure differential is applied, not necessarily the inlet screen; vapour not invariably hazardous gas; degassing chamber as separation chamber), found that Western's Vac-Screen System directly infringed the system claims and induced third parties to perform the method claims, rejected the defendants' invalidity allegations except that claims 1, 11, 16 and 19 were anticipated (invalid) by Derrick, and awarded damages on a reasonable royalty basis (royalty described in judgment...

Citation
2019 FC 1606
Parties
Plaintiff (defendant by Counterclaim): Western Oilfield Equipment Rentals Ltd.; Defendant (plaintiff by Counterclaim): M-I LLC; Defendant by Counterclaim: FP Marangoni Inc.
Court
Federal Court
Jurisdiction
Canada
Judgment Date
23 December 2019
Procedural Posture
Patent Infringement (canadian Patent No. 2,664,173) / Final Judgment (trial)
Outcome
Judgment for M-I LLC (plaintiff by counterclaim). Defendants Western Oilfield Equipment Rentals Ltd. and FP Marangoni Inc. found to have directly infringed system claims and induced infringement of method claims; specified claims (1,11,16,19) invalid; injunction and damages awarded; Rule 227 sanction awarded.
Legal Topics
Claim Construction, Infringement, Inducement, Invalidity Anticipation, Invalidity Obviousness, Invalidity Insufficiency, Invalidity Inutility, Reasonable Royalty, Amendments to Patent Specifications, Sanctions Under Court Rules
Source Language
English
Intellectual Property Patent Law Civil Procedure Damages Law Claim Construction Infringement Inducement Invalidity Anticipation +6 more

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Parties

Western Oilfield Equipment Rentals Ltd.

Plaintiff (defendant by Counterclaim)

M-I LLC

Defendant (plaintiff by Counterclaim)

FP Marangoni Inc.

Defendant by Counterclaim

Procedural Posture

Patent Infringement (canadian Patent No. 2,664,173) / Final Judgment (trial)

Legal Issues

  1. 1 Who is the person skilled in the art?
  2. 2 Construction of key claim terms (slurry, first screen, vapour, degassing chamber, controlling air flow)
  3. 3 Whether defendants directly infringed system claims

Ratio Decidendi

The judge construed the patent from the perspective of a skilled person (five years' experience with shale shakers), interpreted key terms (slurry includes wet cuttings; 'first screen' denotes the screen to which a pressure differential is applied, not necessarily the inlet screen; vapour not invariably hazardous gas; degassing chamber as separation chamber), found that Western's Vac-Screen System directly infringed the system claims and induced third parties to perform the method claims, rejected the defendants' invalidity allegations except that claims 1, 11, 16 and 19 were anticipated (invalid) by Derrick, and awarded damages on a reasonable royalty basis (royalty described in judgment...

Court Disposition

Judgment for M-I LLC (plaintiff by counterclaim). Defendants Western Oilfield Equipment Rentals Ltd. and FP Marangoni Inc. found to have directly infringed system claims and induced infringement of method claims; specified claims (1,11,16,19) invalid; injunction and damages awarded; Rule 227 sanction awarded.

Orders

  • Defendants Western Oilfield Equipment Rentals Ltd. and FP Marangoni Inc. enjoined from infringing or inducing others to infringe the valid claims of Canadian Patent No. 2,664,173
  • Defendants to deliver up all materials in their power, possession, or control that come within the injunction