[kritipinto]

We haven't had any customers confused about it. Seal and Sign are distinctly different words and haven't seen any evidence of confusion.

[coolspot]

I recommend you to talk to an IP attorney. USPTO TM search is currently down, so I can’t check if DocuSeal a successfully registered trademark. I would be surprised if DocuSign won’t raise opposition to registration.

https://www.uspto.gov/trademarks/search/likelihood-confusion