Espacenet
Patent families, patent publication details and patent legal events
European Patent Office public patent search and family information.
Your information
Publication number or invention title, for example US10000000B2 or Coherent LADAR using intra-pixel quadrature detection.
Example results
- Title
- Coherent LADAR using intra-pixel quadrature detection
- Priority Date
- 2015-03-10
- Espacenet Link
- worldwide.espacenet.com
- Overall Status
- Granted publications in 4 jurisdictions; applications without a recorded grant in 0; recorded lapses in 0. Current protection requires country-level confirmation.
- Family
Family Kind Country Legal Status Espacenet Link Publication Date Publication Number applicationEuropean Patent OfficeGranted; current status not confirmed2018-01-17EP3268771A1grantedEuropean Patent OfficeGranted; current status not confirmed2022-06-29EP3268771B1applicationInternational (WIPO)International application; national status varies2016-09-15WO2016144528A1applicationIsraelGranted; current status not confirmed2017-07-31IL252400A0grantedIsraelGranted; current status not confirmed2021-10-31IL252400BapplicationJapanGranted; recent fee payment recorded2018-04-12JP2018510362AgrantedJapanGranted; recent fee payment recorded2019-09-04JP6570658B2applicationJapanGranted; recent fee payment recorded2019-12-19JP2019215363AgrantedJapanGranted; recent fee payment recorded2021-01-20JP6817387B2applicationJapanGranted; recent fee payment recorded2021-04-08JP2021056241AgrantedJapanGranted; recent fee payment recorded2022-07-11JP7098706B2applicationUnited StatesGranted; recent fee payment recorded2016-09-15US2016266243A1grantedUnited StatesGranted; recent fee payment recorded2018-06-19US10000000B2applicationUnited StatesGranted; current status not confirmed2018-06-21US2018172806A1grantedUnited StatesGranted; current status not confirmed2020-11-24US10845468B2- Applicants
- Latest Legal Events
Latest Legal Events Date Event Country 2026-04-20Annual fee paid to national office [announced via postgrant information from national office to epo]France2026-04-13Annual fee paid to national office [announced via postgrant information from national office to epo]Germany2026-04-09Annual fee paid to national office [announced via postgrant information from national office to epo]United Kingdom2025-12-12Lapsed in a contracting state [announced via postgrant information from national office to epo]Turkey2025-11-19Maintenance fee paymentUnited States2025-08-18Lapsed in a contracting state [announced via postgrant information from national office to epo]Hungary2025-08-08Receipt of annual feesJapan2025-07-25Lapsed in a contracting state [announced via postgrant information from national office to epo]CY2025-07-04Receipt of annual feesJapan2024-12-09Receipt of annual feesJapan2024-11-29Lapsed in a contracting state [announced via postgrant information from national office to epo]BG2024-11-14Lapsed in a contracting state [announced via postgrant information from national office to epo]BG2024-08-09Receipt of annual feesJapan2024-04-18Maintenance fee paymentUnited States2024-02-29Lapsed in a contracting state [announced via postgrant information from national office to epo]Belgium2024-01-31Lapsed in a contracting state [announced via postgrant information from national office to epo]Ireland2024-01-31Lapsed in a contracting state [announced via postgrant information from national office to epo]Italy2023-12-20Patent lapsedIreland2023-11-29Receipt of annual feesJapan2023-10-31Lapsed in a contracting state [announced via postgrant information from national office to epo]Switzerland2023-10-31Lapsed in a contracting state [announced via postgrant information from national office to epo]LI2023-10-31Lapsed in a contracting state [announced via postgrant information from national office to epo]LU2023-10-19Lapsed because of non-payment of the annual feeBelgium2023-09-29Lapsed in a contracting state [announced via postgrant information from national office to epo]MC2023-09-29Patent ceasedSwitzerland2023-08-31Lapsed in a contracting state [announced via postgrant information from national office to epo]SI2023-07-28Receipt of annual feesJapan2023-07-12Opt-out of the competence of the unified patent court (upc) registeredEuropean Patent Office2023-06-07No opposition filedEuropean Patent Office2023-05-05No opposition filed within time limitEuropean Patent Office
About Espacenet
Espacenet, also called EPO, uses a publication number or invention title to find a patent family and publication details.
Get patent family returns reported legal events; coverage varies by country, and a grant alone does not establish that a patent is in force.
Built by Fous from worldwide.espacenet.com and checked automatically; it last passed a check on Sep 29, 2026. Fous is not affiliated with Espacenet.
Actions
Get patent family
1 credit per runFind a patent family, publication details, and reported legal events by patent number or invention title. Legal-event coverage varies by country; a grant alone does not establish that a patent is currently in force.
What you provide
| Field | Type | Required | Description |
|---|---|---|---|
Patentpatent | Text | Required | Publication number or invention title, for example US10000000B2 or Coherent LADAR using intra-pixel quadrature detection.Example: Coherent LADAR using intra-pixel quadrature detection |
What you get
| Field | Type | Description |
|---|---|---|
Titletitle | Text | Example: Coherent LADAR using intra-pixel quadrature detection |
Familyfamily | List | |
Kindfamily[].kind | Text | Example: Application |
Countryfamily[].country | Text | Example: European Patent Office |
Legal Statusfamily[].legal_status | Text | Example: Granted; current status not confirmed |
Espacenet Linkfamily[].espacenet_link | Text | Example: https://worldwide.espacenet.com/patent/search/family/055456961/publication/EP32… |
Publication Datefamily[].publication_date | Text | Example: 2018-01-17 |
Publication Numberfamily[].publication_number | Text | Example: EP3268771A1 |
Applicantsapplicants | List | |
Priority Datepriority_date | Text | Example: 2015-03-10 |
Espacenet Linkespacenet_link | Text | Example: https://worldwide.espacenet.com/patent/search/family/055456961/publication/US10… |
Overall Statusoverall_status | Text | Example: Granted publications in 4 jurisdictions; applications without a recorded grant… |
Latest Legal Eventslatest_legal_events | List | |
Datelatest_legal_events[].date | Text | Example: 2026-04-20 |
Eventlatest_legal_events[].event | Text | Example: Annual fee paid to national office [announced via postgrant information from… |
Countrylatest_legal_events[].country | Text | Example: France |
Example result
For Patent: Coherent LADAR using intra-pixel quadrature detection
JSON
{
"title": "Coherent LADAR using intra-pixel quadrature detection",
"family": [
{
"kind": "application",
"country": "European Patent Office",
"legal_status": "Granted; current status not confirmed",
"espacenet_link": "https://worldwide.espacenet.com/patent/search/family/055456961/publication/EP3268771A1",
"publication_date": "2018-01-17",
"publication_number": "EP3268771A1"
},
{
"kind": "granted",
"country": "European Patent Office",
"legal_status": "Granted; current status not confirmed",
"espacenet_link": "https://worldwide.espacenet.com/patent/search/family/055456961/publication/EP3268771B1",
"publication_date": "2022-06-29",
"publication_number": "EP3268771B1"
}
],
"applicants": [
"RAYTHEON CO [US]"
],
"priority_date": "2015-03-10",
"espacenet_link": "https://worldwide.espacenet.com/patent/search/family/055456961/publication/US10000000B2",
"overall_status": "Granted publications in 4 jurisdictions; applications without a recorded grant in 0; recorded lapses in 0. Current protection requires country-level confirmation.",
"latest_legal_events": [
{
"date": "2026-04-20",
"event": "Annual fee paid to national office [announced via postgrant information from national office to epo]",
"country": "France"
},
{
"date": "2026-04-13",
"event": "Annual fee paid to national office [announced via postgrant information from national office to epo]",
"country": "Germany"
}
]
}For developers
Run this workflow from your own code. In Studio, turn on Developer mode and create an API key.
cURL
# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
: "${FOUS_API_KEY:?Set FOUS_API_KEY before running this example}"
curl 'https://api.fous.com/v1/query' \
--fail-with-body --silent --show-error --max-time 120 \
-H "Authorization: Bearer $FOUS_API_KEY" \
-H 'Content-Type: application/json' \
--data-raw '{
"api": "@espacenet",
"visibility": "public",
"operation": "get_patent_family",
"version": 1,
"input": {
"patent": "Coherent LADAR using intra-pixel quadrature detection"
},
"response": {
"format": "json"
}
}'What you can do with it
- Find related publications for a patent.
- Review applicants and priority dates across a patent family.
- Check reported legal events by country.
- Compare publication dates and numbers across family members.
Questions
Is Fous affiliated with Espacenet?
No. Fous is not affiliated with Espacenet. This workflow reads the public worldwide.espacenet.com website and returns its data.
How much does it cost?
Each run costs 1 credit. With pay-as-you-go, a credit costs 1¢; monthly plans cost less per credit.
Do I need a Espacenet account?
No. You only need a Fous account.
How current is the data?
Fous gets the data from worldwide.espacenet.com when you run it; repeating the same request within a day may return the saved result. Fous checks this workflow automatically; it last passed a check on Sep 29, 2026.
Which publications belong to a patent family?
Get patent family returns family publications for a publication number or invention title.
What legal events are reported for a patent?
Get patent family returns reported legal events and their dates and countries; coverage varies by country.