The Alleged Infringement of Patent 1
53 Patent 1 is Australian Patent No 2004213070 entitled "Grinding apparatus for buttons on rock drill bit". It was filed on 19 February 2004 and claims priority from Canadian Patent No CA2,419,214, filed on 19 February 2003. It became open for public inspection in Australia on 2 September 2004 and was accepted by the Commissioner of Patents on 23 March 2009 and has an effective term of monopoly from 19 February 2004 to 19 February 2024 (subject to payment of renewal fees).
54 CME alleges that the respondents have infringed the Patents, including Patent 1, by offering for sale, selling or keeping for the purpose of selling, grinding apparatus and/or grinding cups within Australia which embody the claims in the Patents. The "RTRS Infringing Conduct" is defined in para 6.6 of the FASOC as equivalent to the "Ausharp Infringing Conduct". The Ausharp Infringing Conduct is particularised in paras 6.1, 6.3 and 6.4 of the FASOC as follows:
6.1 At all material times the Applicant supplied, within Australia, grinding apparatus (Applicant's Grinding Apparatus) and grinding cups (Applicant's Grinding Cups) which embody the claims of the Patents.
6.2 In September 2019, the First Respondent and/or Mr Beurs, acquired the assets, stock and employees, and continued the business of, Ausharp Pty Ltd (Ausharp).
6.3 From at least 2012 until September 2019, Ausharp engaged in conduct which infringed the Patents as follows (collectively referred to as Ausharp Infringing Conduct):
(a) from dates presently unknown but as early as June 2012, until on or about 6 September 2019, Ausharp operated a website at: www.ausharp.com.au, which inter alia:
(1) offered for sale grinding cups and parts for the Applicant's Grinding Apparatus which had not been sourced from the Applicant, being:
(A) the shoulder drive parts set out in Schedule A;
(B) the shoulder drive grinding cups set out in Schedule B;
(collectively, Ausharp Infringing Items);
(b) sold, and/or kept for the purpose of selling, the Ausharp Infringing Items;
(c) offered services:
(1) to modify the Applicant's Grinding Apparatus owned by customers by inter alia installing the Ausharp Infringing Items;
(2) to sharpen drill bits for customers, which services used the Ausharp Infringing Items, being the services set out in Schedule C
(collectively, Ausharp Infringing Services).
55 Further particulars are provided in paras 6.6(a), (b) (RTRS Infringing Items and RTRS Infringing Services), (e), (f) and (ga) and Mr Beurs' involvement is identified in para 6.6(g) and includes his position as a shareholder of RTRS and a person held out by RTRS as its "Managing Partner".
56 Further particulars of the respondents' infringing conduct within s 13 of the Act are set out in paras 7.1, 7.2, 7.3 and 7.4 and the allegation is that the installation of certain parts results in the applicant's Grinding Apparatus, that is, the CME Grinding Machine, ceasing to exist and a new grinding apparatus which embodies each essential integer of Claims 1-18 and 21-44 of Patent 1 being made. These are the claims in Patent 1 said to be infringed.
57 A further allegation of infringement, being indirect infringement within s 117 of the Act, is contained in para 8 of the FASOC. That paragraph is in the following terms:
8. Further or alternatively, the Respondents' conduct of supplying to customers the
(a) shoulder drive parts set out in Schedule A referred to in 6.3(a)(1)(A);
(b) shoulder drive grinding cups set out in Schedule B referred to in 6.3(a)(1)(B);
(c) shoulder drive spindle, shoulder drive adaptors, spindle rebuild kit and shoulder drive grinding cups referred to in 6.6(f);
(d) New RTRS Grinding Cups set out in Schedule D1 referred to in paragraph 6.6(ga)(1);
(e) New RTRS Spindle Housing Units and the New RTRS Grinding Cups set out in Schedule D2 referred to in paragraph 6.6(ga)(2),
for use in a grinding apparatus, without the licence of the Applicant, amounts to infringement under section 117 of the PA in that those parts when installed in the Applicant's Grinding Apparatus result in the Applicant's Grinding Apparatus ceasing to exist and makes a grinding apparatus which:
8.1 embodies each essential integer of claims 1 - 18 and 21 - 44 of Patent 1; and
8.2 is not licensed by the Applicant;
in circumstances where:
8.3 those parts are not capable of any other reasonable use;
8.4 those parts are not staple products and the Respondents had reason to believe that customers would put it to that use; or
8.5 the Respondents instructed or induced customers to make such use of those parts.
(Emphasis added.)
58 CME has filed its evidence-in-chief and the evidence includes an affidavit of Mr Van de Loo affirmed on 27 May 2021. Mr Van de Loo addresses each of the Patents. He identifies the grinding cups provided to him by CME's solicitors. He also refers to a CME ESD3 Series Robotic Arm drill bit grinding machine (CME Grinding Machine) provided to him. This was delivered to him in packaging and he assembled it. He refers to other items of equipment which were provided to him.
59 Mr Van de Loo expresses the following opinions:
17. In my opinion, the CME Grinding Machine has each of the integers set out in each of Claims 1 to 7, 9 to 18, 21 to 28 and 22, 27, 30, 32, 35, 37 to 40 and 42 of Patent 1.
18. It may also have each of the integers set out in each of Claims 23 to 26, 28, 31, 34, 36, 41 and 43 but I have not been able to make the necessary measurements or inspections to confirm this.
Now annexed hereto and marked "PVL-19" is a copy of a table for Patent 1 in which I elaborate my opinion as to the presence of each of the integers of the claims of Patent 1 which I found in the CME Grinding Machine.
60 For the purposes of the application for summary judgment, the critical integer in Claim 1 is integer 1.8 which is as follows:
means for varying and controlling feed pressure and a speed of rotation of the output drive shaft during grinding based on a size of a connected grinding tool.
With respect to this integer, Mr Van de Loo comments as follows:
Yes the operator inputs the size of the grinding cup fitted using the control panel shown in the photograph below. Size is selected using the arrows, the size is then changed by rotating the knob on the right side of the user interface panel enclosure. The machine then selects the appropriate speed and feed pressure. I have not been able to measure or otherwise gauge the feed pressure however the difference in speed for different sizes is evident audibly from the sound the electric motor and spindle makes.
61 With respect to 18 integers identified by Mr Van de Loo in Claim 21, he makes the following comments:
Yes.
All of the integers of Claim 21 are present because the CME Grinding Machines [sic] implements a method of grinding working tips of hard metal inserts of rock drill bits, comprising each of these integers:
62 One of the integers, integer 21.8, is as follows:
a support system, pressure control means on the support system for controlling and varying feed pressure during grinding …
63 Claim 26 is as follows:
The method according to claim 21 wherein the method further comprises varying the rotational speed and the feed pressure during a grinding cycle of a working tip on a rock drill bit
Mr Van de Loo comments as follows:
Unsure.
The change in speed was confirmed audibly. I can hear the pressure regulator adjusting pressure but I have not been able to verify variation in pressure.
64 RTRS and Mr Beurs point to Mr Van de Loo's statement that he has "not been able to measure or otherwise gauge the feed pressure" in connection with integer 1.8 in Claim 1 and submits that this does not stand with his conclusion that the integer is present. His reasoning does not disclose that integer 1.8 is present. Furthermore, his conclusion concerning the presence of integer 1.8 is inconsistent with his evidence concerning integer 26.1 in Claim 26 in relation to which he says that he has not been able to verify variation in pressure and is unsure whether the relevant integer is present. RTRS and Mr Beurs also point to Mr Van de Loo's "single blanket statement" that all integers of Claim 21 are embodied in the CME Grinding Machine and submit that that evidence is wholly insufficient to establish infringement of Claim 21 as it does not establish whether (or how) each integer of the claim is said to be taken. Furthermore, RTRS and Mr Beurs submit that Claim 21 includes integer 21.8 and, with respect to that integer, the same problem arises as arises in relation to integer 1.8 of Claim 1.
65 Although Mr Van de Loo expresses the opinion that the CME Grinding Machine may also have each of the integers set out in Claims 23 to 26, 28, 31, 34, 36, 41 and 43, he has not been able "to make the necessary measurements or inspections to confirm this" and RTRS and Mr Beurs submit that, in those circumstances, CME's case must fail with respect to these dependent claims.
66 RTRS and Mr Beurs point to the fact that integer 1.8 in Claim 1 involves not only a means for varying and controlling feed pressure, but also a speed of rotation of the outward drive shaft during grinding based on a size of a connected grinding tool. They submit that it is clear from Mr Van de Loo's explanation that he has not been able to discern a means for varying and controlling feed pressure. They invite the Court to construe his evidence as evidence to the effect that the difference in speed for different sizes is evident audibly from the sound the electric motor and spindle makes, but that this says nothing as to whether there is a means for varying and controlling feed pressure. RTRS and Mr Beurs submit that Mr Van de Loo's conclusion involves speculation on his part "which does not involve the application of proper analysis and reasoning that is required to establish patent infringement by the expression of expert opinion". The same conclusion applies with respect to Claim 21. Again, they point out that Mr Van de Loo's conclusion in relation to integer 1.8 in Claim 1 is inconsistent with his conclusion in respect of a very similar integer, namely, integer 26.1 in Claim 26.
67 RTRS and Mr Beurs submit that deficiencies in the expert evidence cannot be cured by lay evidence because CME's infringement case has, at all times, been advanced through the vehicle of expert testimony. In any event, in expressing his expert opinion, Mr Van de Loo has given no consideration to such lay evidence.
68 RTRS and Mr Beurs seek to raise a new point in para 10 of their submissions in reply. They submit that CME's pleaded case is that the use of the RTRS Grinding Cups and Spare Parts on the CME Grinding Machine creates a new machine which, therefore, infringes Patent 1. They submit that the totality of Mr Van de Loo's evidence in respect of the actual allegation of infringement is contained in paras 24 and 25 of his affidavit affirmed on 27 May 2021. Those paragraphs are as follows:
24. In my opinion, if a CME Grinding Machine is modified by the removal of original parts and the installation of any one or more of the Grinding Cups, Spindle, Spindle Housings and Adaptors, the modified machine will have each of the integers set out in each of Claims 1 to 7, 9 to 18, 21, 22, 27, 30, 33, 35, 37 to 40, 42 and 44 of Patent 1. It may also have each of the integers set out in each of Claims 23 to 26, 28, 31, 32, 34, 36, 41 and 43 but I have not been able to make the necessary measurements or inspections to confirm this.
25. I have determined that the modified machine will have each of these integers as none of the differences incorporated in these replacement parts have any bearing on any of the integers in these Claims.
69 RTRS and Mr Beurs submit that this evidence is supported only by a claims chart that analyses CME's ESD3 Grinding Machine without any of RTRS's parts installed. In other words, Mr Van de Loo's infringement analysis in respect of Patent 1 is focused on determining whether the use of CME's own ESD3 Grinding Machine infringes Patent 1. The analysis contained in Mr Van de Loo's evidence does not involve considering the installation of RTRS Grinding Cups and Spare Parts on the CME Grinding Machine. They submit that, in those circumstances, Mr Van de Loo's approach does not establish CME's infringement case in the manner in which that case is pleaded.
70 RTRS and Mr Beurs should not be permitted to raise this point. It is raised late and it is a point which involves construction of the evidence. Furthermore, the context of this application is important. CME has filed its evidence-in-chief so that the proceeding is not far from trial and the matter will proceed to trial irrespective of the outcome of this application.
71 In answer, CME submits that the fact that Mr Van de Loo was unable to measure the feed pressure does not of itself negate his conclusion that the machine has a means for varying and controlling feed pressure. His expert opinion evidence is that he was able to discern the presence of that feature audibly. CME points to the opinion, clearly expressed by Mr Van de Loo in para 17 of his affidavit, that the CME Grinding Machine has each of the integers set out in the claims he specifies in that paragraph.
72 CME submits that the submissions of RTRS and Mr Beurs ignore the other evidence in the case to the effect that the CME Grinding Machine includes a means for varying and controlling feed pressure and a speed of rotation of the output drive shaft during grinding. In that respect, it refers to evidence from Mr Bjorn Per Sjolander in his affidavit affirmed on 26 May 2021. Mr Bjorn Sjolander is a Vice President of CME. In his affidavit, Mr Bjorn Sjolander states, among other things, the following:
19.12 It is very important to ensure that the correct parameters of speed, pressure and the amount of water flow are applied by the apparatus given a particular size of cup. Balancing the relationship between these parameters has become increasingly important in the design and operation of CME's ESD grinding system given that there is now a greater difference between the size of grinding cups in the series, ranging from 6mm to 26 mm. The CME ESD grinding system utilizes a different set of these parameters for each grinding cup size.
…
20. CME designed the software and its ESD grinding system to optimise all parameters based on the different sizes of grinding cups and buttons being ground. The software predetermines the optimal amount of speed, pressure and the amount of water flow having regard to the design of the grinding cup and the size of the grinding cup being used in the series.
…
22. The two-point connection on the shoulder drive is inherently less stable. The CME Software determines the pressure and speed based on cup size and an assumed hex drive connection. Users cannot change the CME Software to accommodate changes to a spindle of a different length or a shoulder drive connection.
73 There is similar evidence from Mr Bo Thomas Sjolander in his affidavit affirmed on 26 May 2021 at paras 28 to 33. Mr Bo Sjolander is also a Vice President of CME.
74 CME submits that, to the extent the respondents wish to contend that Mr Van de Loo's conclusion as to the presence of method Claim 26 is inconsistent with his conclusion on product Claim 1, this is a matter they may address in contradicting evidence and/or cross-examination.
75 I am not satisfied that CME's claim of infringement of Patent 1 has no reasonable prospect of succeeding. I see no reason why CME cannot rely on its lay evidence in combination with its expert evidence and the lay evidence appears quite clear as to the presence of integer 1.8 in Claim 1. Even in the absence of the lay evidence, Mr Van de Loo's evidence gives rise to an arguable case for the presence of the integer. The same may be said of Claim 21. As to Claim 26, Mr Van de Loo's comment of "unsure" does raise some uncertainty about that claim from the point of view of his evidence, but I agree with CME that that is a matter for responding evidence or cross-examination.
76 As to the dependent claims, I will not enter judgment on these claims in light of the lay evidence. In addition or in the alternative, the utility of entering judgment on a handful of relatively minor allegations in circumstances where the case of infringement with respect to the independent claims is proceeding is very doubtful where (as here) there is no obvious saving in terms of time and cost (Upaid Systems at [56]).