Properly we limit what you are allowed to contract away all the time. This isnt any different. You want to retain control see leasing.
Regarding trade secrets you misunderstand them. Please see
https://www.law.cornell.edu/wex/trade_secret
The Uniform Trade Secrets Act ("UTSA") defines a trade secret as: information, including a formula, pattern, compilation, program, device, method, technique, or process, that derives independent economic value, actual or potential, from not being generally known to or readily ascertainable through appropriate means by other persons who might obtain economic value from its disclosure or use; and is the subject of efforts that are reasonable under the circumstances to maintain its secrecy
There are two basic situations in which obtaining the use of a trade secret is illegal; where it is acquired through improper means, or where it involves a breach of confidence. Trade secrets may be obtained by lawful means such as independent discovery, reverse engineering, and inadvertent disclosure resulting from the trade secret holder's failure to take reasonable protective measures.
Anything that can be gleaned from tearing your product to pieces that isn't suitable for patenting gets zero protection.