The phrase "and so designed" is correct and usable in written English.
It can be used to indicate that something has been intentionally created or structured in a particular way.
Example: "The software is user-friendly and so designed to enhance productivity."
Alternatives: "and thus created" or "and therefore structured".
How to get the tennis look The Lacoste T-shirt French player René Lacoste decided that long shirts weren't suited to the sport in the 30s and so designed the confusingly named polo shirt.
Like, there are certain books you want to hang around in". Monica Bill Barnes & Company, he said, "choose, in a way, like a really good writer does, like a Michael Chabon does, where the way he's peopling those stories and the way he's peopling that world are so particular and so designed for your pleasure".
Kitezh wasn't Rimsky's last opera, but while he was composing the score he confidently expected that it would be, and so designed it in many ways to be a final musical testament, intended from the start as an epic and the most ambitious of all his stage works, with its roots deep in Russian history and legend.
Made as an integral part of the new cathedral, the architect, Frederick Gibberd, saw the casework as part of his brief and so designed the striking front to the organ.
Scientists gave public lectures about how, because men's brains are larger than women's brains, this was evidence that men are more intelligent than women and so designed to be leading a public life (just quoting here, not endorsing!).
Even with the more horrific sequences, visually depicted horror is so tied to generating nervous laughter in the viewer and so designed to cause that reaction that, when creating sequences that were disturbing, it was always like trying put some evil clown through unusual motions.
And so designing a program for that which we call Perform Achieve and Trade amazingly effective program was great.
You can't really go wrong with choosing any smartphone these days and so design and other factors become a key influence in a customer's decision to purchase a phone.
The nanofluid flow loop was a closed circulation and was so designed that the liquid entered the test section at the desired flow rate and temperature.
SO designed and built the microarray database and LIMs.
SO designed and performed all the experiments, analyzed data, and drafted the paper.
