Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 1 of 5 PageID #: 34322
`Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 1 of 5 PagelD #: 34322
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`EXHIBIT 35
`EXHIBIT 35
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`Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 2 of 5 PageID #: 34323
`HIGHLY CONFIDENTIAL – OUTSIDE ATTORNEYS’ EYES ONLY
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`IN THE UNITED STATES DISTRICT COURT
`FOR THE DISTRICT OF DELAWARE
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`Plaintiff/Counterclaim-Defendant,
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`WIRTGEN AMERICA, INC.,
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`CATERPILLAR INC.,
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`v.
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`Civil Action No. 1:17-cv-00770-JDW
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`CONTAINS INFORMATION MARKED
`CONFIDENTIAL PURSUANT TO
`PROTECTIVE ORDER
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`Defendant/Counterclaim-Plaintiff.
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`INITIAL EXPERT REPORT OF DR. CHRISTOPHER RAHN
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`Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 3 of 5 PageID #: 34324
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`Tier 4F Cold Planer CTCT Paving Industry, MKT-0002, (August, 2014)) at 0129-0131;
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`CTCT000001 (Sycamore Project – CAT Grade Control Tier IV Final Cold Planer) at 0015
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`(depicting same diagram); Engelmann Dep., 110:6-18; 112:8-11; 112:20-113:6; 126:10-127:22;
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`130:2-10, Mar. 16, 2023.
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`353. As I explained above regarding claim elements 1[c] and 1[d], the indication and
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`setting devices permit the operator to select a subset of available sensors for automatic grade and
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`slope control and enter set (target) values for the selected subset of sensors. CAT-770_040200
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`(OMM Manual – Grade & Slope) at 0221, 0223; see also CAT-770_022979 (All SOTA -
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`Monitoring System/Grade & Slope) at 3040-3042. When in the “Auto Mode,” the grade and slope
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`ECM controls the milling depth and/or the slope of the milling drum to maintain the target values.
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`CAT-770_040200 (OMM Manual – Grade & Slope) at 0212; see also CAT-770_022979 (All
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`Model SOTA Troubleshooting Manual - Monitoring System/Grade & Slope) at 3015, 3048-3049;
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`CAT-770_001323 (Hot Swap Software Requirements). To do this, the grade and slope ECM
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`compares the measured position against the target value, and based on that comparison, outputs an
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`adjustment signal (if any) to adjust the milling depth and/or slope of the milling drum so that the
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`sensed current actual values approach the set values (target) entered by the operator for the subset
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`of selectable sensors that the operator has selected for control. See CAT-770_040200 (OMM
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`Manual – Grade & Slope) at 0212; see also CAT-770_022979 (All Model SOTA Troubleshooting
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`Manual - Monitoring System/Grade & Slope) at 3015, 3048-3049; CAT-770_001323 (Hot Swap
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`Software Requirements); See Engelmann Dep., 117:9-121:4; 132:16-133:14, Mar. 16, 2023;
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`Tarvin Dep., 65:5-21; 66:20-67:6; 76:11-13; 83:1-12, Mar. 7, 2023.
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`354.
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`I have reviewed the Source Code Report of Dr. Valerdi, and he confirmed that the
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`source code for the Accused PM600/PM800 Sensor Swapping Machines has the functionality as I
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`Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 4 of 5 PageID #: 34325
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`have described above. Opening Expert Report of Dr. Ricardo Valerdi Regarding Source Code (the
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`"Opening Valerdi Report") at ¶¶ 19-49.
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`355.
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`If this claim limitation is not literally present due to the ECM architecture, it is also
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`my opinion that the Accused PM600/PM800 Sensor Swapping Machines infringe this limitation
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`under the doctrine of equivalents. For example, if the recited “controller” is not literally present
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`because the Accused PM600/PM800 Sensor Swapping Machines use additional ECMs, such as
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`the machine ECM to control machine elevation, then a skilled artisan would have understood the
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`differences between one controller and multiple controllers to be insubstantial.
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`356. The Accused PM600/PM800 Sensor Swapping Machines’ controllers perform
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`substantially the same function, in substantially the same way, to achieve substantially the same
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`result as the recited controller. More specifically, the grade and slope ECM and machine ECM
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`function to receive measured values from selected sensors, calculate adjustment values based on
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`set values, and vary the leg heights to control the elevation of the machine frame (and thereby the
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`depth and the slope of the milling drum). The two ECMs do this in substantially the same way as
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`the controller cited in claim 1[f] (e.g., by taking and processing information signals from input
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`devices and providing output signals to the legs) to achieve substantially the same result (e.g.,
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`controlling the milling depth and/or slope of the milling drum). Thus, it is my opinion that this
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`limitation is met under the doctrine of equivalents.
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`357. For at least these reasons, in my opinion, the Accused PM600/PM800 Sensor
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`Swapping Machines include claim element 1[f].
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`(ii)
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`PM300
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`358. For the same reasons stated above for the Accused PM600/PM800 Sensor
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`Swapping Machines, it is my opinion that the Accused PM300 Sensor Swapping Machines include
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`Case 1:17-cv-00770-JDW Document 369-35 Filed 04/12/24 Page 5 of 5 PageID #: 34326
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`Dated: May 19, 2023
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`Christopher Rahn, Ph.D.
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`299
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`Dated: May 19, 2023
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`NGL
`Christpher Rahn, Ph.D.
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`299
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