Kraig Biocraft Laboratories Inc (KBLB)

[GTman1]

Essentially it would be any protein that the silkworms don't naturally produce themselves. But Jon specifically said "beyond silks" which would exclude spider silks as well.

A few of us have long discussed the potential of being able to produce large proteins in large quantities using this platform. The latest PR seems to confirm that they have at least succeeded enough to reduce it to practice, hence the patent application.