The Patent Landscape of Polyhydroxyalkanoates Production by Algae and Cyanobacteria.

Background: As global awareness regarding climate change and environmental pollution outcomes arise, eco-friendly and negative emission technologies emerge.

Methods: In this scenario, polyhydroxyalkanoate (PHA)-accumulating microorganisms play an important role in the transition from the petrochemical-based non-biodegradable polymer to renewable, eco-friendly, and biocompatible materials. More specifically, CO can be converted to biopolymers through photosynthesis by cyanobacteria and algae, posing as a promising technology for renewable material, CO, and petroleum-dependence mitigations.