The basic requirement for patenting is that the invention at hand is novel. Novelty is determined by comparing the features of the invention to prior solutions from which the invention must differ.
Patent Novelty Search: Everything you need to know before filing
Novelty/Patentability Search. What is a Novelty Search? A novelty
Ordinary Skill - FasterCapital
Patentable and Non Patentable Inventions
3. How to find-out if my invention is patentable in India or not ?
IP-Coster - Definition of the novelty varies from country to
Novelty requirement: Meeting the Criteria for a Utility Patent
Novelty: Maintaining Novelty with the First to File Rule
What is novelty? — Pintz & Partners
How to Protect Inventions through Patents
Identification of an invention/finding of the gist, inventive step
The novelty 'sweet spot' of invention, Design Science
Novelty requirement: Meeting the Criteria for a Utility Patent
Denmark - AIPPI
Navigating the Nuances of Novelty and Non-Obviousness in Patent Law