Espacenet is an EPO database containing over 110 million patent documents - full technical descriptions and drawings of inventions - from over 100 countries.
New Espacenet is a complete overhaul of classic Espacenet, offering you
These release notes provide an overview of the features and changes compared to classic Espacenet.
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Responsive design
For optimal user experience, new Espacenet adapts the layout to different
devices (large screens, laptops, tables and smartphones).
See this forum entry for a list of known issues and workarounds.
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Reporting data errors
Please report data errors relating to the document displayed in the detail
view from the link in the main navigation bar.
Field identifier in Smart search |
Description /
Equivalent |
Example |
|
---|---|---|---|
in new Espacenet |
in classic Espacenet |
||
nftxt |
- |
All text fields or names |
nftxt="extreme uv lithography" |
ntxt |
txt |
Title, abstract or names |
ntxt=microscope lens |
ti |
ti |
Title |
ti="mouse trap" |
ab |
ab |
Abstract |
ab="mouse trap" |
desc |
desc |
Description |
desc=lens |
claims |
claims |
Claims |
claims=laser |
ta |
ta |
Title or abstract |
ta="laser printer" |
ctxt |
- |
Title, abstract or claims |
ctxt=milking ctxt=robots |
ftxt |
extftxt |
All text fields (title, abstract, description or claims) |
ftxt=nanoparticles |
in |
in |
Inventors |
in=smith |
pa |
pa |
Applicants |
pa=siemens |
ia |
ia |
Inventors or applicants |
ia=apple OR ia="ries klaus" |
pd1 |
pd |
Publication date |
pd=20180107 |
pr |
pr |
Priority number |
pr=ep20050104792 |
pn |
pn |
Publication number |
pn=ep1000000 pn=EPB12 |
ap |
ap |
Application number |
ap=jp19890234567 |
num |
num |
Numbers |
num=ep1000000 |
ipc |
ipc |
IPC |
ipc=A63B49/08 |
cpc |
cpc |
CPC |
cpc="A61K31/13" |
cpcc |
cpcc |
CPC C-sets |
cpcc="C08F297/02" |
cl |
cl |
IPC or CPC |
cl=C10J3 |
ct |
ct |
Cited documents |
ct=ep1000000 |
1 You can search by the publication date of the earliest publication (e.g. EPA1) of a patent document but not by the publication dates of subsequent publications (e.g. EPB1). This is because subsequent publication dates are not indexed for search purposes.