Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
are proprietary to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"are proprietary to" is a correct and usable phrase in written English.
You can use it when you want to say that something belongs to someone in a way that can't be copied or used by anyone else. For example, "The advanced technologies used in this product are proprietary to the company's research and development team."
✓ Grammatically correct
News & Media
Science
Alternative expressions(18)
are exclusive to
are exclusively owned by
are the sole property of
belong solely to
are privately held by
are the exclusive domain of
are the intellectual property of
are confidential to
are restricted to
are patentable to
are private to
are protected to
are owned to
are third party to
are owning to
are franchised to
present proprietary to
are dedicated to
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
11 human-written examples
Rental renewal rates are proprietary to landlords and nearly impossible to track.
News & Media
The switching center may look for all sorts of factors, most of which are proprietary to the company's software.
News & Media
Whereas a typical grocery store carries up to sixty thousand SKUS (stock-keeping units), less than twenty per cent of them store brands, Trader Joe's, in sparse Hindu fashion, has about three thousand unique products, eighty per cent of which are proprietary to the store.
News & Media
ClassPass has also hired their own instructors to develop classes that are proprietary to ClassPass, rather than licensing out existing workouts and simply streaming them live.
News & Media
It announces iPhone recycling programs and pulls out is iPhone-recycling robots Liam and Daisy, which are proprietary to Apple and are not capable of handling the recycling volume associated with the hundreds of millions of iPhones that are sold each year.
News & Media
The sequences used are proprietary to Australian Biologics.
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
The results won't be proprietary to Dole.
News & Media
You thought straw polls were proprietary to Iowa?
News & Media
It may be faster, but it has many limitations and is proprietary to Microsoft programs.
News & Media
They tend to be proprietary to the exchange on which they are traded.
News & Media
Government officials declined to make a copy of the contract available, saying it contained information that was "proprietary" to DestinationRx.
News & Media
Expert writing Tips
Best practice
When using "are proprietary to", ensure that the context clearly establishes what is being owned and who the owner is. For example, specify, "The algorithm is proprietary to the company."
Common error
Avoid using "proprietary" when you simply mean "unique" or "special". "Proprietary" specifically denotes ownership and legal rights, not just distinctiveness.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are proprietary to" functions as a prepositional phrase indicating ownership or exclusive rights. As Ludwig AI confirms, this phrase is grammatically correct. Examples from Ludwig illustrate its use in various contexts, such as describing proprietary software or data.
Frequent in
News & Media
40%
Science
40%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
10%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "are proprietary to" is a grammatically sound phrase used to indicate that something is owned and protected by a specific entity. As Ludwig AI confirms, its purpose is to assert ownership and define boundaries, primarily appearing in professional contexts like news, science, and business. While uncommon, its usage is consistent and clear, making it a valuable tool for precisely communicating intellectual property rights. Related phrases like "are exclusively owned by" and "belong solely to" can serve as alternatives depending on the specific nuance you want to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are exclusively owned by
Emphasizes exclusive ownership, highlighting that no other entity has rights to the item.
are the sole property of
Highlights the item's status as the unique possession of the entity.
are privately held by
Stresses that the ownership is private, not public.
are the exclusive domain of
Indicates a unique sphere of control or expertise.
belong solely to
A more concise way to express exclusive ownership.
are the intellectual property of
Specifically refers to the ownership of intellectual assets.
are trademarked by
Implies legal protection of the brand or product.
are patented by
Indicates that the item is protected by a patent.
are confidential to
Highlights the sensitive and non-public nature of the information.
are restricted to
Indicates that access or usage is limited to a specific group or entity.
FAQs
What does "are proprietary to" mean?
The phrase "are proprietary to" indicates that something is owned and legally protected by a specific individual or entity, meaning others cannot freely use, copy, or distribute it without permission.
How to use "are proprietary to" in a sentence?
You can use "are proprietary to" to indicate ownership. For example: "The software's unique features "are exclusive to" our company" or "The data "is confidential to" our research team".
What can I say instead of "are proprietary to"?
You can use alternatives such as "are exclusively owned by", "are the sole property of", or "belong solely to" depending on the context.
What is the difference between "are proprietary to" and "are exclusive to"?
"Are proprietary to" specifically emphasizes legal ownership and protection of intellectual property, while ""are exclusive to"" simply indicates that something is limited to a particular entity or group, without necessarily implying legal ownership.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested