COSTS
37 There remains the question of costs. Stack and GST submit that, as with the other orders, nothing final ought be decided in relation to costs pending determination of the proceedings in QG46 of 2000. In these proceedings, which are against DS and the Commissioner of Patents, Stack and GST seek orders for the extension of petty patent 662284. The issue of the entitlement of Stack to obtain the grant of the petty patent is a live issue. It involves the issue which was determined adversely to them by me in the present proceedings. Proceedings QG46 of 2000, Stack and GST submit, is the vehicle by which they will be able to bring the issue before the High Court of Australia again and thereby enliven the latent right to bring a fresh application for special leave to appeal in respect of these proceedings. The difficulty with this submission is that DS and the Commissioner for Patents are parties to these proceedings and have the benefit of such issues estoppel as arise in it. Because the issue in QG46 of 2000 involves the same issue as determined in these proceedings, it is not open to relitigate the issue between the same parties in QG46 of 2000. Accordingly, no useful purpose is now served in not proceeding to deal with the question of costs.
38 The main contest on the question of costs is between Stack and GST on one side and DS, DSQ and GSA on the other. DS, DSQ and GSA submit that they obtained judgment in the action and that the claims against them failed. Further, DS and DSQ claim that they succeeded on their cross claim and obtained revocation of petty patent 645740. It is submitted that this success entitles them to an order for costs of the proceedings on the basis that costs ordinarily follow the event. On the other hand, Stack and GST submit that on all issues other than the issue of entitlement, DS, DSQ and GSA failed and by their conduct substantially prolonged the trial on those issues. They submit that these circumstances warrant an order in their favour, at least in respect of the issues upon which DS, DSQ and GSA failed.
39 Ordinarily costs follow the event and a successful litigant receives its costs in the absence of special circumstances justifying some other order: Hughes v Western Australian Cricket Association [1986] ATPR 40-748 at 48,136; Cummings v Lewis (1993) 41 FCR 559 (FC) at 599-604. A successful party who has failed on certain issues may not only be deprived of its costs on those issues but may be ordered to pay the other party's costs: ibid. The manner in which a party conducts the litigation may require that some order other than the ordinary order be made on the question of costs: Cummings v Lewis at 599-604.
40 The issue of entitlement, other than the claim to inventorship of the invention claimed in petty patent 645740 being in employees of GSA, was of small compass at the hearing. It did not contribute in any substantial way to the length of the hearing. The bulk of the hearing was devoted to issues upon which DS, DSQ and GSA failed.
41 The attack on the petty patent based on invalidity for non-compliance with the requirement of s 40 of the Patents Act is dealt with in paras [88] - [133] of my reasons [1997] FCA 1279. In my view, the attack was unreasonable. In respect of the evidence tendered by DS, DSQ and GSA in support of it, I said in part:
"[113] In my view the invention claimed in Claim 1 does not travel beyond the invention described in the specification. It is therefore fairly based on the matter described in the specification as required by s 40(3) of the Act. Whether or not the claim departs from earlier specifications is irrelevant for the purposes of s 40(3). Whether that is the case will be considered when the priority date of the claim is to be determined.
[114] The objections taken by DS, DSQ and GSA to the meaning or lack of meaning of the term "measuring element assembly" do not alter my view as to satisfaction of the requirements of s 40(3). Stack and GST do not claim any invention or monopoly in a measuring element assembly. In the context of the specification and the claims, the measuring element assembly was the component which engaged threadedly with the manifold at the threaded access port, which component itself measured, or in which was the measuring element which measured, the flow of water through the component. How that unit was constructed, and what elements were used to construct it, were not part of the invention described in the specification. Thus, those matters were not required to be disclosed in, or form part of, the invention claimed in Claim 1. What is not claimed is disclaimed: Electric & Musical Industries Ld v Lissen Ld and Boonton Research Corporation Ld (1939) 56 RPC 23 at 39. The essential features of the measuring element assembly, however constructed, are that it screws into its operative position so that the outlet of the measuring element assembly sealably engages with the upper end of the backflow prevention assembly to require the water to pass through the outlet of the measuring element assembly into and through the backflow prevention assembly, and, by such engagement alone to provide the means of retaining the backflow prevention assembly in its operative position. Those features were clearly and succinctly disclosed in both the specification and the claim, and all the witnesses who claimed to be skilled addressees understood that from their reading of the complete specification and the claims in the petty patent. It is irrelevant that some of the witnesses were cross-examined on the basis that the drawings showed an assembly which was calibrated off-site, when calibration off-site was not part of the invention described or claimed. Likewise, their evidence that there was no definition of what constituted a "measuring element assembly" within the specification or claim and that it was not a term of art in the trade, was also irrelevant when there was no separate claim in the petty patent for a measuring element assembly or for a measuring element assembly having characteristics greater than those claimed as part of the claimed combination.
[115] I also reject the contention that the claim is ambiguous or fails to disclose how the measuring element assembly and the backflow prevention assembly are removed.
[116] In my view the claim and complete specification, as a matter of construction, require that the component, being the measuring element assembly, is engaged and disengaged from its operative position by itself being screwed or unscrewed into or from the threaded meter access port, and thereby engaging or disengaging the end of the backflow prevention assembly. The backflow prevention assembly, once released from its operative position by disengagement of the measuring element assembly, is slid out through the threaded access port when the measuring element assembly is wholly unscrewed and withdrawn from the access port.
[117] The complaints of some of the witnesses as to alleged deficiencies in the drawings in Figures 1, 2, 4 and 5 to the complete specification are in my view disingenuous. To the extent that they are complaints as to the contents and operation of the measuring element assembly, they are also irrelevant.
. . .
[121] All of the witnesses of DS, DSQ and GSA put forward as skilled addressees under cross-examination expressed an understanding of what was a measuring element assembly as described in the petty patent and how it screwed into the unitary manifold and thereby retained the backflow prevention assembly in place. None of these witnesses gave evidence that they could not construct a water meter assembly by following the specification, the drawings and the claims. Such evidence as there was as to whether a water meter assembly could be constructed by reference to the petty patent was all the other way.
[122] Similarly, those put forward as skilled addressees express no lack of understanding as to what constituted a backflow prevention assembly or a non-return valve assembly as those terms are used in the complete specification."
42 In relation to the issues of obviousness and novelty, I am satisfied that DS, DSQ and GSA claimed as part of the prior art base any patent disclosure of a water meter assembly that predated the priority date, any disclosure or knowledge of the individual integers of the claim (as opposed to the combination as a whole) and, the entirety of the tenders for BCC tender WS34/90/91) without any careful discrimination as to their relevancy or weight. The examination and cross-examination demonstrated that the material was either irrelevant or failed to address the statutory test in respect of this combination patent. For example, the BCC tender did not close until 31 August 1990 and the tender details were kept confidential to the BCC. The information contained in them was not publicly available on the priority date and could not have been made known to Stack on that date: see reasons at [154] - [200] as to obviousness and [210] - [229] in respect of novelty.
43 I am satisfied that DS, DSQ and GSA failed to make proper or timely discovery. The issue of discovery existed before the trial commenced and was an ongoing one. It concerned the existence of files and working drawings in the possession of the respondents including working drawings supplied to DS and to GSA by Stack for the purposes of obtaining prices from them to manufacture and supply water meter assemblies to Russell Plastics for it to supply under its contract with the BCC. The documents were important in two respects. First, to demonstrate that the employees of GSA who were put forward as the inventors or co-inventors had done no more than use the working drawings provided by Stack and had replicated those drawings with GSA mastheads as the manufacturing drawings. Second, to demonstrate that DS copied the drawings when it manufactured and supplied water meter assemblies under the later BCC tender. The files were ultimately produced during the trial without any satisfactory explanation as to why they had not been produced earlier. The non-disclosure of the files unnecessarily prolonged the cross examination of witnesses trying to establish the existence of the files, their content and the alleged copying. At the time, I stated that the late disclosure would reflect in the award of costs ultimately made.
44 In my view, the above circumstances constitute special circumstances justifying an order other than the ordinary order as to costs between Stack and GST and DS, DSQ and GSA.
45 DS, DSQ and GSA successfully defended these proceedings and obtained the revocation of petty patent 645740. They are entitled to substantial costs. However, Stack and GST ought not to have to pay for the costs occasioned by unreasonably running issues, being indiscriminate as to the particulars of obviousness and novelty and failing to make proper discovery with the attendant consequence that the trial was unnecessarily prolonged. In my view, the justice of the situation is best achieved by fixing on a percentage of the costs of DS, DSQ and GSA which they must individually carry rather than ordering that they pay the costs of particular issues to Stack and GST. This is particularly so where the late discovery issue impacted across the range of issues. In my view, the conduct of DS, DSQ and GSA, which I find constituted special circumstances, had a substantial effect in the length of the trial and the costs associated with preparing to meet the wide ranging issues upon which they failed. It requires that they carry a substantial part of their own costs, which I fix at 50 per cent.
46 As the outcome in each of QG11 of 1996, QG29 of 1996, VG39 of 1996 and VG40 of 1996 flows from the dismissal of the principal claims in QG28 of 1996 and the revocation of petty patent 645740, and, involved no substantial costs, no separate order for costs should be made against Stack or GST in respect of those proceedings and, in fact, none was sought.
47 The State of Queensland and the BCC are entitled to their costs in respect of QG28 of 1994 and QG21 of 1996 in the ordinary way.