"We think we have very good arguments... I'm not giving up and I'm hoping for a positive result", Shipulin said in a video he posted on Instagram.
The late appeal will raise hopes that Ahn, who switched allegiance to Russian Federation in 2011 after falling out with South Korea's skating authorities, can make an emotional end to his Olympic career in his native country.
The organizing committee reported no confirmed cases among athletes.
The 13 active athletes and two retired athletes working in support roles were among a group of 28 athletes whose bans were overturned by CAS on Thursday.
Pound is the IOC's longest-serving member, and he was among more than a dozen to air views in what he called "the matter of Russian doping activities".
The CAS was scheduled to announce a decision but the hearings could not be completed on Wednesday.
All of this is happening despite Russia's proven use of a sophisticated doping system, which allowed athletes to use a special cocktail of performance-enhancing drugs and then have their dirty urine swapped.
After completing a lengthy investigation, the International Olympic Committee found the nation guilty of "executing an extensive state-backed doping program", the New York Times reported.
It later welcomed 169 Russian competitors who met that criteria to take an interest in the Pyeongchang Games in a group authoritatively known as "Olympic Athletes from Russia" (OAR).
Thirty-two Russian athletes have appealed against their exclusion from this month's Winter Olympics.
International Olympic Committee president Thomas Bach said: "The absence of sanctions by Cas does not mean that you are entitled to receive an invitation from the International Olympic Committee because receiving this invitation is a privilege of clean Russian athletes".
The IOC President also indicated that he was involved in the first negotiations in Pyongyang ahead of the 2000 Olympic Games. His report fed into the IOC's investigation of the Sochi Olympics and its own disciplinary process. And it was all about protocol and who would wear which uniform and how it would look like, who is marching here and who is marching there.
The Olympic opening ceremony is set for Friday, and the participation of the Russian athletes continues to be a distraction.
"The world boxing community unites through this petition to plead the continuation the sport of boxing in the Olympic Games".
In a further 11 cases anti-doping violations were confirmed, but their lifetime bans have been reduced just to cover the 2018 Winter Games, which open in Pyeongchang on Friday.
Olympic medalists often celebrate by taking their country's flag on a "lap of honor" around the venue. The athletes in limbo are cross-country skiers and biathletes, bobsledders and speedskaters, hockey players and figure skaters.