What does Trident Emblem look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add Trident Emblem?

HTC first drew Trident Emblem in Sense 7, released March 30, 2015.

HTC Corporation has shipped 2 versions of Trident Emblem. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn Trident Emblem 2 times. Every revision HTC has shipped is below, newest first.

What does Trident Emblem look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add Trident Emblem?: HTC first drew Trident Emblem in Sense 7, released March 30, 2015.
How many times has HTC redrawn Trident Emblem?: HTC Corporation has shipped 2 versions of Trident Emblem. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.