ENERCON (INDIA) LIMITED Vs. ALOYS WOBBEN

JUDGEMENT

(1.) THE applicant seeks revocation of the Patent No: 201538 (herein referred to as 538) granted to Dr. Aloys Wobben for invention "A method for operating a wind turbine with an electrical generator and a wind turbine with an electrical generator". This patent application was filed on 22.10.2003 with a priority date 24.04.2001and patent grant was published on 23.02.2003.

(2.) THE patent relates to a wind power installation in which the phase angle of the power is varied if the voltage is outside a particular range of values. The application for revocation was filed by Enercon India Limited.

(3.) LEARNED counsel Mr. R. Parthasarathy appeared for the applicant and learned counsel Mr. Praveen Anand represented the respondent. Both the counsel, besides arguing the matter at length, has also filed their written submissions on the preliminary issue as well as on merits.