Policy Inducement Effects in Energy Efficiency Technologies. An Empirical Analysis of the Residential Sector - Green Energy and Efficiency: An Economic Perspective - page 224

Table 6b Patent classes by technological domains and keywords
CPC general class related to each appliance Technologies aimed at

improving the ef -
ciency of home
appliances

Description

Refrigerators
and freezers

F25D
see http://www.
cooperativepatentclassi cation.
org/cpc/scheme/F/scheme-
F25D.pdf

Y02B 40/32 Motor speed

control of
compressors
or fans

Y02B 40/32 Thermal

insulation

Dish - washers A47L 15/00

see http://www.
cooperativepatentclassi cation.
org/cpc/scheme/A/scheme-
A47L.pdf

Y02B 40/42 Motor speed

control of
pumps

Y02B 40/44 Heat recovery

e.g. of wash-
ing water

Washing
machines

D06F
(excluding D06F31/00,
D06F43/00, D06F47/00,
D06F58/12, D06F67/04,
D06F71/00, D06F89/00,
D06F93/00, D06F95/00 as well
as their subgroups).
See http://www.
cooperativepatentclassication.
org/cpc/denition/D/denition-
D06F.pdf

Y02B 40/52 Motor speed

control of
drum or
pumps

Y02B 40/54 Heat recov-

ery, e.g. of
washing
water

Y02B 40/56 Optimisation

of water
quantity

Y02B 40/58 Solar heating

Source adapted from Costantini et al. [ 16 ]

Table 7 Countries
Country Code Country Code

Austria AT Ireland IE

Australia AU Italy IT

Belgium BE Japan JP

Canada CA Korea KR

Switzerland CH Luxembourg LU

Germany DE Netherlands NL

Denmark DK Norway NO

Spain ES New Zealand NZ

Finland FI Portugal PT

France FR Sweden SE

United Kingdom GB United States US

Greece GR