US Trademark and Patent Verification (USPTO)

Overview

The Trademark and Patent Verification API enables instant validation and retrieval of trademark information in the United States. Trademarks are unique identifiers of a brand’s goods or services, and verifying their status is critical for compliance, brand protection, and risk assessment. This API provides a simple way to confirm whether a trademark is active, cancelled, or under dispute, while also giving access to ownership details, assignment history, and covered goods or services—all in a structured format that can be easily integrated into business, legal, or compliance workflows.

Usecases

1. Trademark Verification for KYB / KYC: Businesses onboarding U.S. companies can verify if the entity’s trademarks are active, registered, or cancelled. Useful in fraud prevention, IP risk checks, and compliance vetting. 2. Brand Protection and Monitoring: Companies can periodically fetch the status of their trademarks to track Registration status, Proceedings (oppositions, cancellations, disputes), Assignment changes (ownership transfers) 3. Legal & Compliance Automation: Law firms, paralegals, and compliance teams can replace manual TSDR lookups with automated retrieval. Helps generate docketing reports. 4. Risk Assessment in Transactions : During due diligence, IP-backed lending, or brand licensing, this API can confirm that trademarks are valid and unencumbered by disputes.

API Details

Input

curl --location 'https://api-preproduction.signzy.us/api/v3/us/uspto-tsdr' \
--header 'Content-Type: application/json' \
--header 'Authorization: ' \
--data '{
    "searchNumber" : "0000001"
}'

API Input Schema

Parameter	Required	Data Type	Description
searchNumber	required	string	First name of the person being searched

Output

{
    "result": {
        "overview": {
            "usSerialNumber": "60000001",
            "applicationFilingDate": "",
            "usRegistrationNumber": "1",
            "registrationDate": "1870-10-25",
            "filedAsTeasPlus": "",
            "currentlyTeasPlus": "",
            "register": "Principal",
            "markType": "",
            "status": "Registration - backfile is cancelled or expired.",
            "statusDate": "2005-10-11",
            "publicationDate": "",
            "tm5CommonStatusDescriptor": "DEAD/REGISTRATION/Cancelled/Invalidated"
        },
        "markInformation": {
            "mark": "None",
            "markLiteralElements": "None",
            "standardCharacterClaim": "false",
            "markDrawingType": "0 - UNKNOWN MARK DRAWING TYPE",
            "translation": ""
        },
        "goodsAndServices": {
            "items": [],
            "internationalClasses": [],
            "usClasses": [],
            "classStatus": "",
            "firstUse": "",
            "useInCommerce": ""
        },
        "basisInformationCaseLevel": {
            "filedUse": "false",
            "currentlyUse": "false",
            "filedItu": "false",
            "currentlyItu": "false",
            "filed44D": "false",
            "currently44D": "false",
            "filed44E": "false",
            "currently44E": "false",
            "filed66A": "false",
            "currently66A": "false",
            "filedNoBasis": "false",
            "currentlyNoBasis": "false"
        },
        "currentOwnersInformation": {
            "ownerName": "",
            "ownerAddress": "",
            "ownerLegalEntityType": "",
            "ownerOrganizedIn": ""
        },
        "attorneyCorrespondenceInformation": {
            "attorneyName": "",
            "attorneyDocketNumber": "",
            "attorneyEmail": "",
            "attorneyEmailAuthorized": "",
            "correspondentName": "",
            "correspondentAddress": "",
            "correspondentPhone": "",
            "correspondentEmails": [],
            "correspondentEmailAuthorized": ""
        },
        "prosecutionHistory": [],
        "tmStaffAndLocationInformation": {
            "currentLocation": "Not Found",
            "dateInLocation": "Not Found"
        },
        "assignmentAbstractOfTitleInformation": {
            "totalAssignments": 0,
            "assignments": []
        },
        "proceedings": [
            {
                "typeOfProceeding": "Opposition",
                "proceedingNumber": "91064550",
                "filingDate": "1981-06-08",
                "status": "Terminated",
                "statusDate": "1982-02-09",
                "interlocutoryAttorney": "",
                "prosecutionHistory": [
                    {
                        "entryNumber": 5,
                        "historyText": "TERMINATED",
                        "date": "1982-02-09",
                        "dueDate": ""
                    },
                    {
                        "entryNumber": 4,
                        "historyText": "DEFAULT JUDGMENT",
                        "date": "1982-01-28",
                        "dueDate": ""
                    },
                    {
                        "entryNumber": 3,
                        "historyText": "NOTICE OF DEFAULT",
                        "date": "1981-12-11",
                        "dueDate": ""
                    },
                    {
                        "entryNumber": 2,
                        "historyText": "PENDING, INSTITUTED",
                        "date": "1981-09-24",
                        "dueDate": ""
                    },
                    {
                        "entryNumber": 1,
                        "historyText": "FILED",
                        "date": "1981-06-08",
                        "dueDate": ""
                    }
                ],
                "defendants": [
                    {
                        "name": "DIVCO CORPORATION",
                        "associatedMarks": [
                            {
                                "mark": "ULTRA.PAK",
                                "applicationStatus": "",
                                "serialNumber": "73162041",
                                "registrationNumber": "1"
                            }
                        ]
                    }
                ],
                "plaintiffs": [
                    {
                        "name": "HAYSSEN MANUFACTURING COMPANY",
                        "associatedMarks": [
                            {
                                "mark": "",
                                "applicationStatus": "",
                                "serialNumber": "",
                                "registrationNumber": "720804"
                            }
                        ]
                    }
                ]
            }
        ]
    },
    "reason": "Request Successful",
    "code": "S001"
}

API Output Schema

Trademark Data Fields

Overview

Parameter	Description	Type	Example
usSerialNumber	USPTO serial/application number	string	88917466
applicationFilingDate	Application filing date	string (YYYY-MM-DD)	2020-05-15
usRegistrationNumber	Registration number	string	6215816
registrationDate	Registration grant date	string (YYYY-MM-DD)	2020-12-08
filedAsTeasPlus	Filed as TEAS Plus	string ("true"/"false")	"true"
currentlyTeasPlus	Currently TEAS Plus	string ("true"/"false")	"true"
register	Register type	string	Principal
markType	Mark type	string	Trademark
tm5CommonStatusDescriptor	TM5 status	string	LIVE/REGISTRATION/Issued and Active
status	Current status detail	string	Registered. The registration date...
statusDate	Status date	string (YYYY-MM-DD)	2020-12-08
publicationDate	Official Gazette publication date	string (YYYY-MM-DD)	2020-09-22

Mark Information

Parameter	Description	Type	Example
mark	Mark text	string	LOAAO
markLiteralElements	Literal elements	string	LOAAO
standardCharacterClaim	Standard characters	string ("true"/"false")	"true"
markDrawingType	Drawing type	string	4 - STANDARD CHARACTER MARK
translation	Translation statement	string	The wording "LOAAO" has no meaning...

Goods and Services

Parameter	Description	Type	Example
items	Goods/services list	array	["Baby walkers", "..."]
internationalClasses	Nice international classes	array	["020"]
usClasses	U.S. classes	array	["002","013","022","025","032","050"]
classStatus	Class status	string	ACTIVE
firstUse	First use anywhere	string (YYYY-MM-DD)	2020-04-02
useInCommerce	First use in commerce	string (YYYY-MM-DD)	2020-04-02

Basis Information (Case Level)

Parameter	Description	Type	Example
filedUse/currentlyUse	Use basis flags	string ("true"/"false")	"true"
filedItu/currentlyItu	ITU flags	string ("true"/"false")	"false"
filed44D/currently44D	§44(d) flags	string ("true"/"false")	"false"
filed44E/currently44E	§44(e) flags	string ("true"/"false")	"false"
filed66A/currently66A	§66(a) (Madrid) flags	string ("true"/"false")	"false"
filedNoBasis/currentlyNoBasis	No-basis flags	string ("true"/"false")	"false"

Current Owners Information

Parameter	Description	Type	Example
ownerName	Current owner name	string	ZHONGSHAN... LTD.
ownerAddress	Owner full address	string	JICHANG VILLAGE...
ownerLegalEntityType	Owner entity type	string	LIMITED COMPANY (LTD.)
ownerOrganizedIn	Jurisdiction	string	CHINA

Attorney / Correspondence Information

Parameter	Description	Type	Example
attorneyName	Attorney of record	string	Benjamin Michael Mot
attorneyDocketNumber	Docket number	string	YIPUS491
attorneyEmail	Attorney email	string	[email protected]
attorneyEmailAuthorized	Email authorized (attorney)	string ("true"/"false")	"true"
correspondentName	Correspondent name	string	Benjamin Michael Mot
correspondentAddress	Correspondent address	string	Mot Law Group...
correspondentPhone	Correspondent phone	string	8006517301
correspondentEmails	Correspondent emails	array	["info@...", "[email protected]"]
correspondentEmailAuthorized	Email authorized (correspondent)	string ("true"/"false")	"true"

Prosecution History

Parameter	Description	Type	Example
prosecutionHistory	Chronological actions	array	{ "date": "2023-09-01", "description": "..." }

TM Staff and Location Information

Parameter	Description	Type	Example
currentLocation	File location	string	PUBLICATION AND ISSUE SECTION
dateInLocation	Date entered	string (YYYY-MM-DD)	2020-12-08

Assignment Abstract of Title Information

Parameter	Description	Type	Example
totalAssignments	Number of assignments	integer	1
assignments	Assignment records	array	see payload

Assignment record fields:

Parameter	Description	Type	Example
assignmentConveyance	Conveyance type	string	ASSIGNS THE ENTIRE INTEREST
assignmentReelFrame	Reel/Frame id	string	7096/0544
assignmentPages	Number of pages	integer	2
assignmentDateRecorded	Record date	string (YYYY-MM-DD)	2020-11-05
assignor.*	Assignor details	object	{ "assignorName": "...", "assignorExecutionDate": "2020-11-05", ... }
assignee.*	Assignee details	object	{ "assigneeName": "...", "assigneeAddress": "...", ... }

Proceedings

Parameter	Description	Type	Example
proceedings	TTAB/TM proceedings	array	[] (none recorded)

Proceeding record fields:

Parameter	Description	Type	Example
TypeOfProceeding	Proceeding type	string	Opposition
proceedingNumber	Proceeding number	string	91064550
filingDate	Proceeding filing date	string (YYYY-MM-DD)	1981-06-08
status	Proceeding status	string	Terminated
statusDate	Proceeding status date	string (YYYY-MM-DD)	1982-02-09
interlocutoryAttorney	Interlocutory attorney	string	``
defendants/plaintiffs	Party details	array	see example

Party details:

Parameter	Description	Type	Example
name	Party name	string	DIVCO CORPORATION
associatedMarks	Party’s marks	array	see below

Associated marks:

Parameter	Description	Type	Example
mark	Mark text	string	ULTRA.PAK
applicationStatus	Application status text	string	``
serialNumber	Serial number	string	73162041
registrationNumber	Registration number	string	1

Proceeding history:

Parameter	Description	Type	Example
entryNumber	Entry index	integer	5
historyText	Event text	string	TERMINATED
date	Event date	string (YYYY-MM-DD)	1982-02-09
dueDate	Event due date	string (YYYY-MM-DD)	``

Sample Errors

{
    "result": {},
    "reason": "Internal Server Error",
    "status": "failure",
    "code": "E601"
}

Error Response Parameters

Parameter	Description
result	Empty result object
reason	Reason for error
status	Status of the api
code	Error code from Signzy

Error Code

HTTP Status Code	Error Code	Description
400	E001	Bad Request
401	E1001	Unauthorized Access
403	E201	Forbidden
409	E401	Upstream error
429	E501	Rate Limit Exceeded
500	E601	Internal Server Error
503	E701	Service Unavailable
504	E801	Timeout

Success Codes

HTTP Status Code	Success Code	Description
200	S001	Request Successful.

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