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From: Eric Rescorla <ekr@rtfm.com>
Date: Fri, 17 Jul 2026 06:15:58 -0700
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To: Daniel Holmgren <daniel=40blueskyweb.xyz@dmarc.ietf.org>
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Subject: =?utf-8?q?=5BAtp=5D_Re=3A_AT_Protocol_Trademark?=
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On Fri, Jul 17, 2026 at 6:04=E2=80=AFAM Daniel Holmgren <daniel=3D
40blueskyweb.xyz@dmarc.ietf.org> wrote:

> Hey folks,
>
> Bluesky recently announced that it now owns the trademark for
> "ATPROTOCOL". You can read more details in the announcement post:
> https://atproto.com/blog/at-protocol-trademark
>
> The short version is that another company threatened litigation, so
> Bluesky purchased the trademark to protect both Bluesky and other
> companies/projects building with the protocol. Bluesky has adopted as
> permissive a policy as possible without losing trademark rights, taking
> inspiration from projects such as Wikimedia, Red Hat, Rust, Python
> Foundation, Apache, Mozilla, Linux, and Debian.
>

I'm not super familiar with these other trademarks, but Mozilla's policy
[0]  isn't
really that permissive. To start big, I can't call my product "firefox",
but I also
have to include a trademark attribution notice, can't use it as the name of
my
business, put it on merchandise for sale, etc.

-Ekr

[0] https://www.mozilla.org/en-US/foundation/trademarks/policy/

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote g=
mail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jul 17,=
 2026 at 6:04=E2=80=AFAM Daniel Holmgren &lt;daniel=3D<a href=3D"mailto:40b=
lueskyweb.xyz@dmarc.ietf.org">40blueskyweb.xyz@dmarc.ietf.org</a>&gt; wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"lt=
r"><div>Hey folks,</div><div><br></div><div>Bluesky recently announced that=
 it now owns the trademark for &quot;ATPROTOCOL&quot;. You can read more de=
tails in the announcement post:=C2=A0<a href=3D"https://atproto.com/blog/at=
-protocol-trademark" target=3D"_blank">https://atproto.com/blog/at-protocol=
-trademark</a></div><div><br></div><div>The short version is that another c=
ompany threatened litigation, so Bluesky purchased the trademark to protect=
 both Bluesky and other companies/projects building with the protocol. Blue=
sky has adopted as permissive a policy as possible without losing trademark=
 rights, taking inspiration from projects such as<span style=3D"background-=
color:transparent">=C2=A0Wikimedia, Red Hat, Rust, Python Foundation, Apach=
e, Mozilla, Linux, and Debian.</span></div></div></blockquote><div><br></di=
v><div>I&#39;m not super familiar with these other trademarks, but Mozilla&=
#39;s policy [0]=C2=A0 isn&#39;t</div><div>really that permissive. To start=
 big, I can&#39;t call my product &quot;firefox&quot;, but I also</div><div=
>have to include a trademark attribution notice, can&#39;t use it as the na=
me of my</div><div>business, put it on merchandise for sale, etc.=C2=A0</di=
v><div><br></div><div>-Ekr</div><div><br></div><div>[0]=C2=A0<a href=3D"htt=
ps://www.mozilla.org/en-US/foundation/trademarks/policy/">https://www.mozil=
la.org/en-US/foundation/trademarks/policy/</a></div></div></div>

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