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
Proprietary developed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Proprietary developed" is not correct in English.
It should be "Proprietarily developed" or "Proprietary development." You can use it when referring to something that has been developed in a proprietary manner, typically in a business or technology context. Example: "The software is proprietary developed, ensuring that only our company has access to its unique features."
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(4)
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
1 human-written examples
To this end a non-isothermal two-phase model has been developed and implemented into a proprietary developed FEM software.
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
It is essentially a computer that runs the Linux operating system and proprietary software developed by Mirra.
News & Media
For many years, he was the sole guardian of the proprietary formulas developed by the founder, Mrs. Estee Lauder.
News & Media
The performance evaluation was carried out using a proprietary code developed at Politecnico di Milano.
Science
The in situ triboluminescent optical fiber (ITOF) sensor is a proprietary sensor developed by High-Performance Materesearcherstute researchers.
Science
Together, the two have a network of about 200 coaches, all using a proprietary method developed by Mr Goldsmith.
News & Media
A food score — a proprietary measurement developed by Weight Watchers International, Inc. — is also given for dieters enrolled in that program.
Academia
The OBD-II standard is a hybrid of proprietary systems developed by each car manufacturer and a standard interface for testing exhaust emissions mandated by the federal Environmental Protection Agency.
News & Media
The Instinct, operating on a proprietary network developed by Samsung and Sprint, can be used to watch live TV and as a modem to connect a PC to the Internet.
News & Media
Additionally, the supercomputer will use proprietary technology developed by Cray, which is a move away from how supercomputers have been designed and built in recent years.
News & Media
Proprietary technology developed by Panasonic raised the cards' data storage rates to the level necessary for DVD-quality playback, said Andrew Nelkin, vice president for Panasonic's Optical Group.
News & Media
Expert writing Tips
Best practice
To enhance clarity, specify who developed the technology (e.g., "developed in-house," "company-developed").
Common error
Avoid directly combining the adjective "proprietary" with the past participle "developed." Instead, use the adverbial form "proprietarily" or rephrase to use "proprietary development".
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "Proprietary developed" functions as an adjective-participle combination intended to describe the nature of a product, technology, or process. However, according to Ludwig, this combination is grammatically incorrect.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "Proprietary developed" seeks to describe something created using privately-owned methods. However, it's considered grammatically incorrect; the adverbial form "proprietarily developed" or the noun phrase "proprietary development" are preferable. Usage is rare, appearing mainly in science and news contexts. Ludwig AI confirms the grammatical error, suggesting that while the intent is clear, better alternatives exist for professional and formal communication. To ensure clear and accurate communication, opt for grammatically sound alternatives.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Proprietarily developed
Adverbial form indicating the manner in which something was developed; emphasizes the proprietary nature of the development process.
Proprietary development
Noun phrase referring to the act or process of developing something proprietary; shifts focus to the development itself as proprietary.
Developed in-house
Focuses on the location of development within the company, implying ownership but not explicitly stating it's proprietary.
Internally developed
Similar to 'developed in-house', highlighting the internal origin of the development.
Privately developed
Emphasizes that the development was not public or government-funded, suggesting potential proprietary status.
Company-developed
Highlights that the company was responsible for the development.
Exclusive development
Focuses on the uniqueness and restricted access to the developed item or process.
Secretly developed
Implies that the development was intentionally concealed, hinting at proprietary interests.
Patent-pending development
Indicates that the development is likely proprietary and an application for patent protection has been filed.
Confidential development
Suggests a high level of secrecy and restricted access during the development process.
FAQs
What's the correct way to say something was developed using proprietary methods?
The grammatically correct alternatives are "proprietarily developed" or "proprietary development". The phrase "proprietary developed" is considered incorrect.
What can I say instead of "proprietary developed"?
Alternatives include "proprietarily developed", "proprietary development", "developed in-house", or "internally developed" depending on the context.
What does "proprietarily developed" mean?
It means something was developed using methods, techniques, or technologies that are exclusively owned and protected by a company or individual.
How does "developed in-house" differ from "proprietarily developed"?
"Developed in-house" simply means the development occurred within the company. "Proprietarily developed" implies that the methods or technologies used are also owned and protected by the company, giving them an exclusive advantage.
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
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested