> I was hoping to hear more about his cat litter work
Of course it could be a different Lin Wang working in this area, but it looks like he has a few patents for new absorbent materials and related things [0, 1].
Cat Litter (and other absorbency products like diapers) are one of the most competitive areas of consumer material science.
I read a great article about how there is continual pressure the shrink the shelf space they take from super markets, and that has led to some pretty interesting breakthroughs in science.
Of course it could be a different Lin Wang working in this area, but it looks like he has a few patents for new absorbent materials and related things [0, 1].
[0] https://patents.google.com/patent/US5849405A/en?inventor=Lin...
[1] https://patents.google.com/patent/US7757638B2/en