The phrase "first time developed" is correct and can be used in written English.
You can use this phrase when discussing something that has been created or developed recently, or for the first time. For example, "This new technology is the first time developed of its kind."
Copenhagen ended with the most significant agreement on climate change to date – the first time developed and major developing countries had acquiesced to curbing their greenhouse gas emissions: a concord between the US, China, India, Europe and all the major emerging economies had been unthinkable only a few years before.
The nano-assemblies were first time developed by using simple and one-step methodology that is only temperature based.
Based upon these facts, Seiyama et al. for the first time developed semiconductor-based detector for gaseous components [7].
Scientists in Japan claim they have for the first time developed a reliable way to generate new mouse teeth in a Petri dish.
In summary, a simple, reproducible, surfactant-free, and high-efficient solvothermal approach has been for the first time developed to successfully synthesize n-type α-In2Te3 thermoelectric nanomaterials.
A novel label-free DNAzyme molecular beacon (MBzyme) strategy was for the first time developed for colorimetric amplification detection of target nucleic acids.
For the first time, developing countries recognized their future responsibility, while developed nations acknowledged their historic contribution.
Development issues were finally elevated to the highest political level and, for the first time, developing countries were challenged to translate their development vision into nationally-owned plans.
In 2005, for the first time, developing countries produced a majority of the world's potatoes.
For the first time, developing countries also agreed to look at how they can cut emissions in the future – but did not make specific pledges.
The changes could also help drug companies that are, for the first time, developing new drugs to try to attack the disease earlier.
