Login   |  
Contact   |  

Lumen (formerly Chilling Effects Clearinghouse)

Lumen is an independent research project studying cease and desist letters concerning online content. We collect and analyze requests to remove material from the web. Their goals are to facilitate research about the different kinds of complaints and requests for removal–both legitimate and questionable–that are being sent to Internet publishers, search engines, and service providers, and to provide as much transparency as possible about the “ecology” of such notices, in terms of who is sending them and why, and to what effect.

The Lumen database contains millions of notices, many of them with a valid legal basis, some of them without, and some on the murky border.


Related Articles

News Feed

Nokia, Samsung agree fresh 5G patent licence

The previous deal expired at the end of 2022 amid a dip in net sales for Nokia’s IP licensing division…
Learn More
News Feed

Friday’s Endnotes – 03/10/23

Books are Not Floor Wax and Road Salt — “Although the Connecticut bill does not require publishers…
Learn More
News Feed

Four patent issues to watch in Brazil in 2023

Patent term adjustments, PDPs and know-how licensing could be hot topics this year, say sources…
Learn More