| 
                     
                        | (84) | Designated Contracting States: |  
                        |  | AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
                           NO PL PT RO RS SE SI SK SM TR |  
                        |  | Designated Extension States: |  
                        |  | BA ME |  
                        |  | Designated Validation States: |  
                        |  | KH MA MD TN |  
 
                     
                        | (30) | Priority: | 17.04.2021 US 202163176234 P 
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                        | (71) | Applicant: Envgo Inc. |  
                        |  | Waterloo, Ontario N2J 2H8 (CA) |  
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                        | (72) | Inventors: |  
                        |  | 
                              JOHANNESSON, GlenWaterloo, Ontario N2L 2C1 (CA)
PEASGOOD, MichaelWaterloo, Ontario N2J 2H8 (CA)
MAILLOUX, JerryWellesley, Ontario N0B 2T0 (CA)
TRIBOU, MichaelHeidelberg, Ontario N0B 2M1 (CA)
MASOJC, PaulWaterloo, Ontario N2L 6A3 (CA)
 |  
 
                     
                        | (74) | Representative: Dennemeyer & Associates S.A. |  
                        |  | Postfach 70 04 25 81304 München
 81304 München (DE)
 |  
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