US Patent 10902185 Distributed collaborative storage with operational transformation

Systems and methods are disclosed herein for performing operational transforms on a document. A first operation is received at a first server that includes a first object of an electronic document. In response to receiving the first operation, the first server prohibits a second server from having write access to the first object. The first server applies the first operation to the first object to obtain a transformed first object. In response to obtaining the transformed first object, the first server allows the second server to have write access to the first object. These steps are repeated for a second object associated with a second portion of the electronic document that is different from the first portion of the electronic document.