The phrase "are highly proprietary" is correct and usable in written English.
It can be used to describe something that is owned by a specific individual or organization and is not available for public use or knowledge.
Example: "The software's algorithms are highly proprietary, making it difficult for competitors to replicate our technology."
Alternatives: "are very exclusive" or "are tightly controlled".
These are non-relational extensions that are highly proprietary and have major disadvantages.
"Today's decision represents an important precedent and supports Standard & Poor's position that its valuable and respected indexes are highly proprietary and that issuers of S.& P. index-based financial products must strictly adhere to the terms of our license agreements," Leo C. O'Neill, Standard & Poor's president, said in a statement.
And the patterns and grading rules the algorithms for sizing used for mass-produced clothing are highly proprietary, built with software that can cost tens of thousands of dollars.
Laboratory notebook records are highly specific to a (sub discipline, heterogeneous, complex in nature and often in proprietary formats.
BART, being built by and Aerospace company, is a highly proprietary system with many maintenance anomalies.
Knowledge management in the British electrical industry was a highly proprietary activity where the practitioners sought patents in order to configure their market in a highly competitive industrial sector.
This is all highly proprietary stuff.
A. Stuart Saft, a Manhattan lawyer who is chairman of the Council of New York Cooperatives and Condominiums, said that unless the co-op's proprietary lease is highly unusual, or unless the blockage in the vent was caused by the shareholder, the co-op would normally be responsible for repairing the vent and ensuring that it is in good working order.
The database market is highly concentrated with the three main proprietary database vendors – Oracle, IBM and Microsoft – accounting for approximately 85% of the market in terms of revenue, the commission added.
No CISO is going to wage a battle to prohibit the use of Salesforce, even though it's highly likely that it could expose proprietary information, perhaps even intellectual property, that could be extremely costly if compromised.
Maintaining an inventory of these assets is essential to emergency planning, but information about these resources may be highly sensitive for either security or proprietary reasons.
