The phrase "a certain proprietary" is correct and usable in written English.
It can be used when referring to a specific proprietary item, concept, or information that is not explicitly named.
Example: "The company has developed a certain proprietary technology that sets it apart from its competitors."
Alternatives: "a specific proprietary" or "a particular proprietary".
Though the old-timers still wield a certain proprietary authority, it is not their street anymore.
As a "race" woman, McDaniel had a certain proprietary interest in the blacks in the movie industry.
In fact, it tends to be mistaken for a supplier of a certain proprietary compost.
General constraints are identified, which are not specific for a certain proprietary concept, but depending on the material, concept type, fabrication, assembly and installation procedures and site location.
Is the internet then really nothing more than just a platform for us to use certain proprietary silo services on?
Beyond the limits of the study, our results clearly show that in France, and more precisely in southwest France where most of the studied farms were located, the major risk for the introduction of scrapie in a flock during the 1990s was feeding certain proprietary concentrates and, possibly, milk replacers to sheep.
"Certain proprietary enzymes" are added, Mr. Stabile said.
"Certain proprietary trading activities that are risky and conducted only for the trading book of the firm shouldn't be subsidized by deposit insurance," he said.
Citigroup has been trying to sell many of its remaining alternative investment funds, and has disbanded certain proprietary trading units amid heavy regulatory pressure.
One is the so-called Volcker rule that would bar large Wall Street institutions from certain "proprietary trading" activities they consider vital.
Some of those moves, including exiting certain proprietary trading businesses, presaged the new financial regulations that investment banks across Wall Street are now scrambling to comply with.
