"accumulated progress" is correct and usable in written English.
You can use it to refer to the total amount of progress that has been made over a long period of time, for example: "The team have made steady, accumulated progress over the last few years and are now ready to take the next step forward."
Although knowledge of nucleomorph genome evolution is accumulating, progress is hampered by the existence of only a single chlorarachniophyte nucleomorph genome sequence.
When the block is released and a bolus of RA is simultaneously administered the accumulated spermatogonia progress through the differentiation pathway in complete synchrony and maintain that synchrony with regard to stages of the cycle of the seminiferous epithelium for several months.
At three months of age, few such clones have accumulated or progressed to a stage where they can form an immediate cancer once p53 is deleted.
Blacks only recently began to close the home ownership gap with whites, and thus accumulate wealth — progress that now is being erased.
With all this accumulated knowledge and progress do they have the ability and means to resolve these self-created difficulties?
The tragic turn of world events during the first few centuries of the Christian Era wrought havoc to the accumulated knowledge and progress of mankind.
DARPA, having realized the progress accumulated throughout the study, urged the Northrop team to remain together.
34, 35 The onset of multiple lacunar strokes occur and get accumulated with the progress of aging and role of risk factors.
We benefits of the progresses accumulated over the last 30 years in the field of RNA secondary structure prediction and, using an IP framework, expands these methods to incorporate the novel local motifs information available in databases.
In the APP-tg mouse immunoreactivity for ferritin light-chain, the iron storage isoform, was initially distributed throughout the brain and as the disease progressed accumulated in the core of amyloid plaques.
