IN THE FEDERAL COURT OF AUSTRALIA VICTORIA DISTRICT REGISTRY VG 215 of 1994 BETWEEN: WIMMERA INDUSTRIAL MINERALS PTY LTD (ACN 004 302 130) Applicant AND: RGC MINERAL SANDS LIMITED (ACN 008 763 666) First Respondent RGC MINERAL SANDS LIMITED cross-claimant WIMMERA INDUSTRIAL MINERALS PTY LTD FIRST CROSS-CLAIMANT THE COMMISSIONER OF PATENTS SECOND CROSS-RESPONDENT JUDGE: SUNDBERG J DATE: 12 NOVEMBER 1997 PLACE: MELBOURNE EX‑TEMPORE REASONS FOR JUDGMENT According to Terrell on the Law of Patents (14th ed) at 245, irrespective of whether the amendments sought are allowed or refused, it is the normal practice that the applicant be required to pay the respondent's costs. However, in the exercise of its discretion the Court might refuse costs or award reduced costs to a respondent who has made unnecessary or trivial objections. The respondent took numerous objections under s 102 and relied on many matters going to the exercise of the discretion to disallow amendments. Although I rejected all the discretionary matters, most of them were seriously arguable. Some, however, such as the petty patent and catching the infringer points, were not of that character. It will be apparent from my reasons for judgment of 15 October 1997 that in my view many of the s 102 non‑disclosure grounds were not seriously arguable. The discretionary non‑disclosure grounds related mainly to other amendment applications made by the applicant. None of the grounds was made out. I have taken into account that these grounds amounted at least to complaints of lack of candour on the part of the applicant. On the other hand I have taken into account, as I said in my judgment, that the applicant could have been more forthcoming in its affidavits in relation to the other applications. I regard this as neutralising the respondent's failure to make out its lack of candour claims. In all the circumstances I think the appropriate order is that the applicant pay three‑quarters of the respondent's costs of the application. I certify that this and the preceding page are a true copy of the Ex‑Tempore Reasons for Judgment herein of the Honourable Justice Sundberg Associate: Dated: 12 November 1997 Counsel for the Applicant: P W Collinson Solicitor for the Applicant: Arthur Robinson & Hedderwicks Counsel for the Respondent: D Catterns QC Solicitor for the Respondent: Allen Allen & Hemsley