Will we need patents?

Short answer: NO

Patents are restrictive by design; they promote monopolies and slow innovation, they limit access to creating things, even when it benefits humanity. 

Under servicecracy, all knowledge is shared freely. It is an honor to provide knowledge on how to create new things that serve humanity. 

These beings love creating things that benefit others.  They feel highly honored because they have the ability to create something beneficial to others. They also feel a strong responsibility to share their knowledge, kindly and respectfully, and teach it to others.