The phrase "asserted that they made" is correct and usable in written English.
It can be used when reporting someone's claim or statement about their actions or creations.
Example: "The researchers asserted that they made significant progress in their study on climate change."
Alternatives: "claimed that they created" or "stated that they produced".
Ms. Ryder's defense team and other representatives say, essentially, that the store security officials are lying, asserting that they made up the scissors episode only when they realized that the store's videotapes weren't conclusive and that they concocted a "confession".
DCPS officials assert that they made the shift to enable comparability, but the timing suggests otherwise.
Due to this relationship with EpiVax, the authors acknowledge that there is a potential conflict of interest inherent in the publication of this manuscript, and asserts that they made an effort to reduce or eliminate that conflict where possible.
It also asserts that they make companies more efficient by turning managers into owners.
President Obama used one of the last news conferences of his presidency Friday to lament the country's deep political divisions, asserting that they make the United States vulnerable to foreign manipulation, and to warn President-elect Donald Trump to be less casual in his dealings with foreign leaders.
Chinese officials assert that they have made progress, pointing to the way that they have suspended operations at some of the plants, and started supervising the remaining ones.
Yet both can assert that they have made the world a better place during the past century, and it is far from obvious which claim is stronger.The answer matters, and not just in order to award the historical bragging rights.
In two of the studies, it was found that when the physicians disagreed with the feedback they questioned its credibility and asserted that they would not make any changes to their practice until they verified the responses by conducting their own independent reviews of their practice [ 30, 31].
Newer products assert that they're made with grains that "are true to their original form," as Trader Joe's Ancient Grain Bread (made with quinoa, oats, amaranth, Kamut, millet, teff and barley) states on its label.
Instead, he asserted, the prosecution would simply prove that "they made the conscious decision to shoot a man standing in the confined space of a vestibule".
