We are currently developing a new site to host the Patent Manual of Practice and Procedure. The BETA version of this site is now available for you to review. The information and content displayed in the BETA site is only available for testing purposes. Do not use or reference the information in the BETA site when making any decisions or actions regarding IP rights.

2.19.1.10 Additional to an Additional

Date Published

A patent of addition may be applied for, and granted, in respect of another patent of addition (see McFeely's Application (1912) 29 RPC 386). There is also no objection if there is a longer series of additional applications. However, it is essential that the patent request discloses all relevant facts, such that the term of any patent issued can be readily determined.

Back to top