Patent classifications
Y
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Y02
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Y02T
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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70/00
Maritime or waterways transport
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Y02T70/50
Measures to reduce greenhouse gas emissions related to the propulsion system
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Y02T70/5218
Less carbon-intensive fuels, e.g. natural gas, biofuels
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Y02T70/5236
Renewable or hybrid-electric solutions
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