Patent protection and government regulation are studied in the process of end-of-life ( EOL) product collection and remanufacturing operations undertaken by the third-party remanufacturer. Dynamic game models between manufacturers and remanufacturers are established for three scenarios to discuss respective production decision-makings of enterprises and remanufacturing performances: no patent protection without government regulation，patent protection without government regulation，and patent protection with government regulation. The results indicate that the manufacturer-led patent licensing mechanism restrains remanufacturing to some extent and can bring significant benefits to the manufacturers only when the remanufacturing industry is relatively well developed. The government-led extended producer responsibility (EPR) mechanism can facilitate the development of remanufacturing industry，by effectively enhancing the product recovery rate，especially during the early development periods of remanufacturing. In addition，the promoting effect of the governmentled mechanism on remanufacturing implementations is positively related to the environmental benefits brought about by remanufacturing. The conclusions are of significant references for remanufacturing-related enterprises in developing production strategies concerning remanufacturing patented products and for the government in developing related fiscal policies.