Liverpool have asked the Premier League to investigate two key VAR decisions in Saturday's Merseyside derby draw.
Klopp was angry after Jordan Henderson's late goal was ruled out for offside against Sadio Mane.
He also questioned how Everton goalkeeper Jordan Pickford had not been dismissed for a challenge that injured Virgil van Dijk early on.
"The picture I saw was not offside, but it was because somebody decided it," said Klopp.
The lunge ended Van Dijk's afternoon and could see him set for a spell on the sidelines with the centre-back taken to hospital for a scan on a knee injury.
Pickford escaped punishment as Van Dijk was offside in the build-up, although it is understood VAR official David Coote subsequently did not check for a potential red card, despite having the power to do so.
Liverpool have called into question the failure to scrutinise Pickford's challenge on Van Dijk and take appropriate action, and have also asked for clarity on which part of Mane's body was deemed to be offside.
Richarlison was also dismissed late on for Everton in a dramatic finish at Goodison Park, with Klopp fearing Liverpool midfielder Thiago Alcantara may have been injured in the challenge.
Mane had put the visitors ahead in the third minute, with the hosts levelling for the first time when Michael Keane headed in a corner.
Everton came from behind again to remain top of the Premier League, in-form striker Dominic Calvert-Lewin heading in an 81st-minute equaliser after Mohamed Salah had put Liverpool 2-1 up.
Should Pickford have been sent off?.