As a prime example of this, the nvidia Physx public license has this wonderful section:
6. Attribution Requirements and Trademark License. You must provide attribution to NVIDIA.
A. You will include a reference to the PHYSX SDK and NVIDIA in any press releases for such Game that relate to NVIDIA, or in-game physics, and will identify NVIDIA as the provider of "PHYSX" (or such other term or phrase as indicated by NVIDIA from time to time).
B. For Games, Demos, and Videos that incorporate the PHYSX SDK or portions thereof, the NVIDIA
logos must appear:
a. on the back cover of the instruction manual or similar placement in an electronic file for the purpose of acknowledgement/copyright/trademark notice;
b. on external packaging;
c. during opening marquee or credits with inclusion of “NVIDIA”;
d. must appear on title marketing feature list with a specific call-out of NVIDIA PHYSX Technology
e. on the credit screen; and
f. in the “About” or “Info” box menu items (or equivalent) of all Physics Games or Applications using any portion of the PHYSX SDK.
C. Provide a quote citing the Licensee’s integration of the PHYSX SDK into the Game or Application for NVIDIA’s use in press materials and website.
D. Refer to NVIDIA’s PHYSX SDK in all press coverage referring to the use PHYSX in the development of any Game or Application.
Failure to provide attribution pursuant to this Section shall be considered a material breach of this agreement.