- Redline Detection, LLC v. Star Envirotech, Inc.No claims unpatentablePTAB · Jun 30, 2014 · IPR2013-00106 · APJ James B Arpin · IPR · Final written decision
Claims 9 and 10 were not shown unpatentable because the evidence did not establish a reason to combine the references to create the claimed inert environment.
RulingsFinal written decision- Skill levelSkill level patent owner adoptedDecided for patent owner
“Petitioner, however, does not cite precedent to support its position, and, during the oral hearing, Petitioner acknowledged that it was unaware of any supporting case law. Id. at 28:14-17. Moreover, we note that Dr. Checkel has “worked on automotive research projects with all of the ‘Big Three’ North American manufacturers as well as various suppliers to the industry.” Ex. 2018 ¶ 3. We are not persuaded on this record and with respect to this art that Petitioner has shown that a relevant distinction may be drawn between persons of ordinary skill in the United States and in Canada.” slip op. at 16
- Expert testimonyPatent owner expert creditedDecided for patent owner
“Based on the present record, including Dr. Checkel’s unrebutted testimony, we are not persuaded that Petitioner has provided sufficient evidence to show that a person of ordinary skill in the art would have had reason to substitute the air used in Gilliam with inert gas alone from the mixture disclosed in Stoyle to achieve the invention recited in claim 9. Specifically, Dr. Checkel opines that: 136. The Stoyle apparatus heater relies on a high pressure process to heat oil to a temperature so as to enable flash evaporation and thus generate a large output of smoke. The Stoyle apparatus heats and forces a foam of oil and inert carbon dioxide gas under pressure through narrow annular passages in a heated metal assembly. This construction allows the oil to be pressurized and superheated above its atmospheric boiling temperature without significant degradation because of the uniform heating temperature and lack of oxygen. At the end of Stoyle’s heater tube, the superheated liquid oil is released to ambient conditions to form a mist. 137. A smoke generator relying on high pressure and flash evaporation to generate large volumes of smoke would be inappropriate and dangerous to use with the closed volume of an EVAP system, which is typically restricted to pressure of 1 psi (7kPa) or less. Even if the smoke generator had some modifications, the use of high pressure in generating the smoke and the production of large volumes of smoke at a rapid rate would risk damaging EVAP and fuel system components, possibly to the point of rupture. A person of skill would not consider Stoyle to be an analogous reference to add features missing from Gilliam. Ex. 2018 ¶¶ 136-137 (emphasis added; citations omitted). Dr. Checkel’s analysis of the differences between Stoyle and claim 9 of the ’808 patent is specific, well-supported, and persuasive. Therefore, we do not find sufficient evidence to support Petitioner’s argument for relying on Stoyle’s ventilation testing apparatus, in combination with Gilliam’s vacuum system leak-testing apparatus, to make the asserted substitution. We determine that the evidence of record is not sufficient to conclude that Gilliam and Stoyle provide a reason for one skilled in the relevant art to create an inert environment within a closed smoke-producing chamber and, subsequently, within a closed EVAP system during leak testing. In view of the differences between Stoyle’s and Gilliam’s apparatus, as detailed by Dr. Checkel, we are persuaded that a person of ordinary skill in the relevant art would not have reason to choose only the inert gas from Stoyle’s air/inert gas mixture and substitute inert gas alone for Gilliam’s use of air to achieve the invention recited in claim 9.” slip op. at 25
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
“iii. Combination of Gilliam and Stoyle For the reasons discussed below, we agree with Patent Owner, and we are not persuaded by Petitioner’s evidence or Petitioner’s reasoning that a person of ordinary skill would have had reason to substitute Stoyle’s use of inert gas, forced into the narrow compressed space between a bore and a plug, in place of the air used in Gilliam’s temperature-regulated, spark arrestor-governed system to generate smoke in a closed smoke-producing chamber. See Pet. 41-42. It is not sufficient for prior art references to teach or suggest the recited limitations of a claim. There must be some reasoning supported by rational underpinnings to combine the references to achieve the invention recited in the challenged claims. As the U.S. Supreme Court explained, “[a] factfinder should be aware, of course, of the distortion caused by hindsight bias and must be cautious of arguments reliant upon ex post reasoning.” KSR, 550 U.S. at 421 (citing Graham, 383 U.S. at 36 (warning against a “temptation to read into the prior art the teachings of the invention in issue” and instructing courts to “guard against slipping into use of hindsight”).” slip op. at 22
- ExcludeMotion to exclude, deniedMixed
“Exhibits 2020, 2022, and 2024-2036: Referenced in Dr. Checkel’s Declaration, and Exhibits 2008, 2013, 2015, and 2017: Referenced in Mr. Saffie’s Declaration Petitioner seeks to exclude Exhibits 2020, 2022, and 2024-2036, referenced in Dr. Checkel’s Declaration, and Exhibits 2008, 2013, 2015, and 2017, referenced in Mr. Saffie’s Declaration, as allegedly irrelevant under FRE 403 and hearsay under FRE 801 and 802. Pet. Mot. Excl. 15. Petitioner, however, fails to identify any allegedly improper portions of any of these exhibits with any particularity. Id.; see Pet. Reply Mot. Excl. 5 (“For the reasons set forth in [Petitioner’s] motion, the remainder of [Patent Owner’s] evidence should be excluded.”). Such a general objection to these exhibits does not provide us with the information necessary to assess Petitioner’s reasons for seeking exclusion of these exhibits. Therefore, on this record, Petitioner’s motion to exclude Exhibits 2008, 2013, 2015, 2017, 2020, 2022, and 2024-2036 is denied. V. CONCLUSION Petitioner has not presented sufficient evidence to show by a preponderance” slip op. at 38
Patent outcomesUS 6,526,808 not shown unpatentable§ 103 obviousnesscites KSRPatents in suitUS 6,526,808
Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.