"all the requests" is correct and commonly used in written English.
You can use it when referring to a group of requests as a whole. Example: All the requests for additional supplies have been approved.
"I was just so overwhelmed by all the requests.
Almost half of all the requests came from the United States, the report said.
In addition, the banks had no obligation to fulfill all the requests it received.
The office set up a new e-mail address to handle all the requests.
I've said yes to 5%to10%0% of all the requests that I've had".
Outright contempt greeted all the requests from Judge May for answers to his questions.
If all the requests are made within a short time, they usually will count as only one check.
"We set priorities and we can't survey the entire city based on all the requests we get".
After all, the requests of female patients for female nursing assistants seem reasonable on the basis of modesty.
Google said it had had to hire workers to process all the requests from Germans wanting to remove photos of their residences from Street View.
Even as governments worked to process all the requests for flights, many foreign citizens had already found room on planes chartered by private companies with workers in Egypt.
