RT Journal Article
T1 Geostrategic study of the evolution of energy harvesting systems based on the patent activity of flywheels and regenerative shock absorbers
A1 Míguez Tabarés, José Luis
A1 Gómez Rodríguez, Miguel Ángel
A1 Rodríguez, Sandra
A1 Porteiro Fresco, Jacobo
K1 3313.15 Diseño de Maquinas
AB This paper analyses the technological activity on energy harvesting and storage systems, such as flywheels andregenerative shock absorbers, for support of renewable energy and electric vehicle applications. The activity isanalyzed based on the evolution of the patents over the last 20 years, based on databases such as Patbase andDerwnet. The data reveal that less than 50 % of the total flywheels patents and utility models are granted. Chinais identified as the leading innovator in this area, followed by the United States, Japan, and Germany, whichcollectively account for 84 % of all patent families. A ranking of related companies and institutes is dominated byChinese companies such as CANDELA (SHENZHEN) TECHNOLOGY INNOVATION CO., SHENYANG WEIKONGNEW ENERGY TECH CO., followed by German and American companies such as LUK LAMELLEN, VYCON,Siemens, and Caterpillar Inc. The leading regions on regenerative shock absorbers technologies are Germany,China, USA, and the European Patent Office (EPO). The study shows a leadership of Germany accounting for39 % of the priority patents. The study also identified the top 20 applicants with the highest number of patentfamilies, which included European companies such as SCHAEFFLER AG, HYDAC, VOLKSWAGEN AG, andContinental Automotive GmbH
PB Energy Reports
SN 23524847
YR 2024
FD 2024-12
LK http://hdl.handle.net/11093/7449
UL http://hdl.handle.net/11093/7449
LA eng
NO Energy Reports, 12, 1777-1793 (2024)
NO Universidade de Vigo/CISUG
DS Investigo
RD 25-ene-2025