Microsoft obtained a patent on the use of the key ‘Page Up’ and ‘Page Down’. The key is exist since IBM era more than a quarter century ago. Microsoft patents on the ‘Page Up’ and ‘Page Down’ in 2005. In August 2008, the patent is granted by the United States Patent and Trademark Office (USPTO). Patents numbered 7415666 describe about “the methods and systems in the document to make scrolling on the right size in a document.
Patents are written in the name of Timothy Sellers, Heather Grantham, and Joshua Dersch as founders. Although, the keyboard Page Up and Page Down ‘has been around since about a quarter century ago. For example keyboard for the IBM PC in 1981. Microsoft often seems to get a patent and technology or controversial inventions. Many parties acknowledge that the inventions have already been invented by other people, based on the general idea. Some of Microsoft’s patents still in debate, including patents for the mouse ’scroll wheel’ and ‘double-click’. Microsoft currently has nearly 10,000 patents that defense by the USPTO.
