"innovative period" is a correct and usable phrase in written English.
For example, you could use it in a sentence like: "The 19th century was a particularly innovative period for scientific discovery."
Although his most innovative period was over by the end of the 1950s, Gillespie continued to perform at the highest level.
Like certain more prominent historians, deMause thinks that American history runs in cycles--except that deMause's cycles proceed from what he calls Group-Fantasies, his cycle includes Depressions and Manic Periods, but they all begin with what deMause calls an Innovative Period.
This surely is the most innovative period in human history, an era that will be remembered as the inflexion point in exponential technologies that made the impossible possible.
I think China is going through the most innovative period in hundreds of years.
Despite all the suffering, it was one of the most innovative periods in our history.
After Los Angeles, Bowie decamped to Cold War Berlin, and embarked on what would turn out to be one of the most sonically innovative periods of his career.
This innovative anthology also brings into view a selection of poems from the early modern period, its third section.
Depicting a small girl cradling a bird, the painting has become an emblem of peace, and marks the beginning of Picasso's innovative Blue Period.
He has an intense passion for the innovative musical period of the 1960s.
During that same period, innovative companies like Dad's Garage in Atlanta, Burning Coal in Raleigh, N.C., and the Hip-Hop Theater Festival in Brooklyn opened the world of theater to new, young and diverse audiences.
Trends change rapidly and, as the prime minister is fond of reminding us, it is useful to be agile and innovative in a period of everlasting uncertainty and flux.
