This is not correct. For every lens KM designed (include 70200g),
Sony has to pay licensed fee to KM. This is rhe reason why Sony has
little control over prices, and try to create new lenses like DT50mm,
as they can save the license fee. Some even claimed that parts of
design patents of Sony CZs are belong to KM. There are some
discussions for this topic in Chinese websites.
They have to pay a licensing fee on everything (whether lens or
otherwise) that KM owned in the past, UNLESS, Sony purchased the
Intellectual property rights, outright, for those things.
Sony did purchase the IP on a lot of things, from KM, at the time of
KM exiting the market. They don't have to pay a dime to KM for it.
For for the items that Sony decided NOT to purchase the IP, Sony does
have to pay a licensing fee.
KM has nothing whatsoever to do with design patents for CZ lenses.
Carl Zeiss designs those in Oberkochen, Germany. Thank goodness for
that.
In fact, KM did have an almost ready 28-70 f/2.8G SSM, when they
exited the market but Sony decided to not purchase that design and
went with Carl Zeiss. They did the same when it came to the 85mm
f/1.4G, by discarding the KM design and going with the CZ 85mm f/1.4
Planar.
The easiest way to look at it, is by examining the price of the Sony
lenses, vis-a-vis the competition's lenses and if a specific Sony
lens is inordinately more expensive than that of a competitor, and if
it came from the KM legacy, you can bet that Sony has not purchased
the IP for that particular product, and are paying a hefty licensing
fee to KM.