For being a co-equal member of the Godhead, it would appear that the Holy Spirit is, for all intents and purposes, absent from the major points, events, and visions held in Revelation.
For example, let's look at Revelation 5
5 Then one of the elders said to me, “Do not weep! Behold, the Lion of the tribe of Judah, the root of David, has triumphed to open the scroll and its seven seals.”
6 Then I saw a Lamb who appeared to have been slain, standing in the center of the throne, encircled by the four living creatures and the elders. The lamb had seven horns and seven eyes, which represent the sevenfold Spirit of God sent out into all the earth. 7 And He came and took the scroll from the right hand of the One seated on the throne.
8 When He had taken the scroll, the four living creatures and the twenty-four elders fell down before the Lamb. Each one had a harp, and they held the golden bowls full of incense, which are the prayers of the saints. 9And they sang a new song:
“Worthy are You to take the scroll and open its seals, because You were slain, and by Your blood You purchased for God those from every tribe and tongue and people and nation.
10 You have made them into a kingdom, priests to serve our God, and they will reign on the earth.”
The Lamb Exalted
11 Then I looked, and I heard the voices of many angels and living creatures and elders encircling the throne, and their number was myriads of myriads and thousands of thousands. 12 In a loud voice they said:
“Worthy is the Lamb who was slain, to receive power and riches and wisdom and strength and honor and glory and blessing!”
13 And I heard every creature in heaven, and on earth, and under the earth, and in the sea, and all that is in them, saying:
“To Him who sits on the throne, and to the Lamb, be praise and honor and glory and power forever and ever.”
14 And the four living creatures said, “Amen,” and the elders fell down and worshiped.
Also see Revelation 7:9-12
After this I looked and saw a multitude too large to count, from every nation and tribe and people and tongue, standing before the throne and before the Lamb. They were clothed in white robes, with palm branches in their hands. 10 And they cried out in a loud voice:
“Salvation to our God, who sits on the throne, and to the Lamb!”
11 And all the angels stood around the throne and around the elders and the four living creatures. And they fell facedown before the throne and worshiped God, 12 saying, “Amen! Blessing and glory and wisdom and thanks and honor and power and strength to our God forever and ever! Amen.”
Among others, those passages show the exaltation, worship, praise, honor, etc. all given to God and the Lamb. Not one mention of the Spirit having a throne, receiving dominion, etc. How can this be reconciled? Are there any Trinitarian commentaries available that seek to explain or offer up some sort of logical resolution as to why the Spirit, being co-equal and co-eternal, doesn't seem to be receiving the same reverence?