The Conduct of the Applicant
16 In early May 2006, the applicant's Australian distributor became aware that a Garth Living electric flame effect heater Model No DBL-200A-MS5 was being sold by a retailer in the A.C.T. That information was passed on to the applicant. A sample of that model heater was purchased on 12 May 2006 by an agent of the applicant's Australian distributor.
17 In early June 2006, the applicant instructed its UK solicitors to advise it in relation to potential infringements of the Patent in Australia by Bunnings and by the "Good Guys" retail chain. The two models of electric flame effect heaters under consideration at that time were the MS-5 heater and the BH1 heater. The BH1 heater was marketed by Garth Living as part of a range of heaters. Many heaters in that range had the prefix "BH".
18 At about the same time, that is to say, in early July 2006, the applicant also instructed DLA Phillips Fox in Australia.
19 Trap purchases of various other models of electric flame effect heaters were made between early August 2006 and December 2006. A further trap purchase was made in June 2007. No further trap purchases were made after June 2007.
20 Proceeding NSD 1681 of 2006 was commenced on 1 September 2006. In the Statement of Claim filed at the commencement of that proceeding, only two models of electric flame effect heaters were expressly referred to in the pleading. These were Model No MS-5 and Model No BH1. By a Further Amended Statement of Claim filed on 5 April 2007, the form of which was first notified in January 2007, an additional eight models from the Garth Living range were added to the list of infringing heaters. The list of infringing heaters in that version of the Statement of Claim in proceeding NSD 1681 of 2006 was the list which the applicant took to trial before me in late 2008 and is the same list as was taken to trial in proceeding NSD 43 of 2007 in which Bunnings was the sole respondent.
21 At the trial, and on appeal to the Full Court, the applicant relied upon expert evidence directed to each of the ten electric flame heaters which were expressly referred to in its Statements of Claim in proceedings NSD 1681 of 2006 and NSD 43 of 2007. A sample of each of those models was tendered in evidence.
22 In similar vein, in proceeding NSD 2056 of 2007, in which Hotpoint is the sole respondent, only one model of heater was expressly referred to in the Statement of Claim as infringing the Patent (viz Model No HPDBL2HY). Model No DBL-2000-DZ and Model No DBL-2000-MS5 were not expressly referred to in the Statement of Claim in proceeding NSD 2056 of 2007 and were not the subject of any findings of infringement made by the Full Court.
23 No attempt was made by the applicant to prove that any of the specified additional heaters infringed the Patent. No samples of those heaters were tendered in evidence. No trap purchases were made of samples of those additional heaters, with the exception of Model No BH13.
24 On 4 August 2006, before the commencement of proceeding NSD 1681 of 2006, Mr Tulley, who was the UK lawyer at DLA Piper in charge of advising the applicant, sent an email to Mr Naughton, who is now the Chief Executive of Business Development of Glen Dimplex, a company incorporated in the Republic of Ireland, which is the parent of the applicant. In 2006, Mr Naughton was a senior executive of the applicant who was responsible for managing the issues concerning the alleged infringements of the Patent in Australia. In his email to Mr Naughton, Mr Tulley said:
Whilst we might be able to make a general claim for infringement of all fires with the same flame effect engine based on the one model we have, we would soon have to go into detail to specify which models we are saying infringe so if it is possible to source a sample of each model that we think infringes that would be best.
25 This email was sent in response to a specific request for advice made by Mr Naughton to Mr Tulley in which Mr Naughton asked whether samples of all of the alleged infringing items should be purchased or whether one product could be "… extrapolated to the rest of the range".
26 In an email sent on 29 October 2006 by Mr Naughton to Mr Corry, who was, at that time, also an executive employed by the applicant, Mr Naughton said:
One issue that has bothering me for the a while is the fact that a complete range of infringing products are being sold by Bunnings/Garth in Australia but we have only focused on one model, the DBL 2000A-MS5; this is the top fire on the attached letter I sent to Sean at the beginning of the summer, but as you can see they have a much more extensive range.
At the outset I asked Stephen about this and he said we should only focus on one product and use it as a representative example. I am concerned that everyone is focusing on only one model and not the entire range and if I was a retailer this was the case and I would assume the rest of the range was not at fault. I have mentioned this to Sean a couple of times and he doesn't seem concerned but I would appreciate if you would put my mind at ease.
I had two samples of each model purchased a few months ago as exhibits; these samples are still in Australia in Hagemeyer's warehouse.
Regards,
27 On 31 October 2006, this email was forwarded to Mr Chatterton, who was, at that time, an associate employed by DLA Piper in the UK. In response, Mr Chatterton advised Mr Corry and Mr Naughton that, because the applicant had sought an injunction restraining Garth Living and Cohen from (amongst other things) "otherwise infringing" the Patent and also sought an order for the delivery up of all infringing items, the relief claimed by the applicant would extend to all infringing heaters whether or not they were specifically referred to in the Application or in the Statement of Claim. Mr Chatterton said that he would raise this matter with DLA Phillips Fox.
28 Mr Tulley swore that, as far as he could recall, there was no subsequent discussion involving executives of the applicant, lawyers from DLA Piper or lawyers from DLA Phillips Fox about the issue canvassed in the email sent by Mr Chatterton to Mr Corry on 31 October 2006.
29 The product list published by Garth Living in mid June 2007 included the nine BH models of electric flame effect heaters expressly referred to in par 2.4 of the Amended Statement of Claim filed in proceeding NSD 1681 of 2006 as well as models BH3, BH8, BH11, BH13 and BH14 which are part of the group of heaters now sought to be added to the list of infringing items by the amendment which the applicant seeks.
30 In an affidavit sworn for the purposes of the present application, Mr Tulley said that, whilst he had had some experience of patent litigation in the UK, he was not aware of Australian practice in respect of such litigation. In particular, he did not know whether the courts in Australia would permit damages to be recovered in respect of models of heaters which had not been the subject of specific findings of infringement at the liability stage of the proceedings and did not turn his mind to the question in 2006 or 2007.
31 Mr Tulley and other witnesses testified that the applicant had never made a conscious decision to exclude the specified additional heaters or, indeed, any other heaters from the Australian litigation.
32 Mr Naughton said:
11 At the time the statements of claim in of the present proceedings were filed (and later amended in proceeding NSD 1681 of 2006), Bitech did not have available to it any samples of the Garth branded heaters having model numbers BH3, BH8, BH11 and BH14 and the Hotpoint branded heaters having model numbers DBL-2000-DZ (and/or HPDBL 2DZ) and DBL-2000-MS5 (and/or HPDBL 2MS) (together, the Additional Models).
12 Bitech did not intend, by filing (or amending) the statements of claim in the form in which it did, to exclude from the scope of the relief claimed in these proceedings the Additional Models, or any other electric flame effect heater which possessed the features of claim 1 of the Patent even though distributed under a different model number.
13 Bitech did not intend, by filing (or amending) the statements of claim in the form in which it did, to abandon any claim to relief in relation to the Additional Models, or any other electric flame effect heater which possessed the features of claim 1 of the Patent even though distributed under a different model number.
14 Bitech always intended that it would pursue a claim for pecuniary relief in these proceedings in relation to the Additional Models should it succeed on issues of liability based on the evidence filed prior to the hearing in October 2008.
15 Bitech expected that the Respondents would file affidavits in accordance with the terms of the disclosure orders made by the Court on 28 July 2010 and that those affidavits would include details of any sales by the Respondents of the Additional Models and any other electric flame effect heater which possessed the features of claim 1 of the Patent.
33 Mr Conaghan, who was the partner at DLA Phillips Fox who managed the Australian litigation at the Australian end, said:
7 I refer to paragraph 5 of the 25 August 2006 Letter. It was my belief at the time, as the Applicant's legal representative who was required to certify to the Court that each allegation in the pleading had a proper factual and legal basis for being made, that it was appropriate to have to hand physical samples of any alleged infringing heater which was to be referred to in the Statement of Claim so as to be able to be satisfied that it fell within the scope of the claims of the Patent.
34 Mr Conaghan also said:
14 I have reviewed the Court's reasons for judgment in these proceedings dated 12 April 2011. I accept that the Court has found that the Statement of Claim in each proceeding effectively limits the Applicant's claim for pecuniary relief to the particular models of heaters referred to. However, I did not intend or believe at the time I prepared the Statements of Claim that they would have this effect.
15 To the contrary, I intended and believed that the Applications and Statements of Claim in each proceeding would together be sufficient to enable the Applicant to claim relief in respect of all infringing models of heaters sold by the Respondents in due course, should the Applicant be successful on issues of liability, which I expected would be dealt with separately from and before issues of quantum in accordance with the usual practice in intellectual property cases.
16 I expected that, should the Applicant be successful on issues of liability, the Respondents would then be obliged to disclose all examples of heaters falling within the scope of the claims for the purposes of any hearing on damages, and the Applicant would then be able to claim damages in respect of such infringements. In this regard, I had in mind the approach I understood to be adopted in cases involving claims of infringement of patent and other intellectual property rights, which would allow for the matter to proceed in this way.
17 I also expected that the Respondents would maintain all documents and other evidentiary materials relating to such infringements during the course of the proceedings, given the breadth of the relief that was sought in the Application in each proceeding.
35 In an endeavour to support the proposition that the applicant had an arguable case in respect of the specified additional heaters, Mr Naughton also said:
19 As explained above, since Bitech began manufacturing and selling Optiflame Fires over 20 years ago and became the market leader, the only material variation in the flame effect apparatus has been the option of incorporating either moving ribbons or a rotating spindle of reflective material, either of which are features in claim 1 of the Patent. Taking the BH3, BH8, BH11, BH13 and BH14 models as an example, the fact that those models are presented as part of the same range of flame effect heaters makes it very likely, in my experience, that they contain the same type of apparatus for simulating flames. In my experience, the internal apparatus for simulating flames is the same within a given range and the casings and other external features which differentiate particular models are added for cosmetic or aesthetic reasons.
20 I cannot envisage any reason why a new entrant to the market would want or need to introduce a range of heaters that incorporated different flame effect apparatus. This is particularly so where the products are sourced from the same factory or the same manufacturer. In such circumstances, it does not make commercial sense for different models to incorporate different apparatus, or to produce a flame effect by different means. That would require additional investment in tooling and disruption in the factory for the construction of the additional products, and thereby increase costs.
21 For these reasons, it is very likely in my opinion that the BH3, BH8, BH11, BH13 and BH14 models and the DBL-2000-DZ model incorporate the same type of apparatus for simulating flames as the other models sold by the Respondents, as described in the Court's reasons for judgment dated 26 November 2009.