Design Registration Research

Nexscope Utility Patent Image Search

Perform visual similarity search for utility model patents using an image URL, with filtering by country, legal status, date ranges, and assignee. Supports utility model patents only (type U) with shape-only or shape+pattern+color matching models. For design patents, use ecommerce.zhihuiya-patent-image-search instead.

MCP tool name

nexscope_zhihuiya_utility_patent_image_search

MCP endpoint

https://api.nexscope.ai/mcp

JSON-RPC method

tools/call

Authentication

Use OAuth 2.1 Authorization Code with PKCE and the mcp:tools scope. API keys remain supported as a compatibility option.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

If authentication fails, ask the user to open API Access and copy a valid key.

Call this MCP tool

Initialize an MCP 2025-11-25 Streamable HTTP session at https://api.nexscope.ai/mcp, then use tools/call.

{
  "jsonrpc": "2.0",
  "id": "zhihuiya-utility-patent-image-search-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_zhihuiya_utility_patent_image_search",
    "arguments": {
      "country": "US",
      "isHttps": 0,
      "limit": 10,
      "model": 4,
      "offset": 0,
      "patentType": "U",
      "preFilter": 1,
      "stemming": 0,
      "url": "https://m.media-amazon.com/images/I/719mRAn2VrL._AC_SL1500_.jpg"
    }
  }
}

MCP 2025-11-25 · Streamable HTTP

Progress is delivered on the original POST SSE response. GET SSE carries notifications; reconnecting must query existing asynchronous work rather than submit again.

Arguments

Name	Type	Required	Description
`url`	`string`	required	Image URL (maximum 1,000 characters) Example: https://m.media-amazon.com/images/I/719mRAn2VrL._AC_SL1500_.jpg
`patentType`	`string`	required	Patent type: U for a utility model patent. Default: U Example: U
`model`	`integer`	required	Image-search model. Design patents: 1 (smart association, recommended) or 2 (search this image). Utility model patents: 3 (match shape) or 4 (match shape, pattern, and color; recommended) Example: 4
`country`	`string`	optional	Patent authority codes for countries, organizations, or regions, separated by commas, for example CN,US,JP. Omit to search all patent authorities Example: {}
`loc`	`string`	optional	LOC classifications (Locarno classification numbers). Join multiple classifications with AND, OR, or NOT Example: {}
`legalStatus`	`string`	optional	Comma-separated patent legal-status codes. Values: 1 (published), 2 (substantive examination), 3 (granted), 8 (duplicate-grant avoidance), 11 (withdrawn), 12 (withdrawn-unspecified), 17 (deemed withdrawn), 18 (voluntarily withdrawn), 13 (rejected), 14 (fully revoked), 15 (expired), 16 (annual fee unpaid), 21 (rights restored), 22 (rights terminated), 23 (partially invalid), 24 (application terminated), 30 (abandoned), 19 (deemed abandoned), 20 (voluntarily abandoned), 25 (abandoned-unspecified), 222 (PCT did not enter designated state within designation period), 223 (PCT entered designated state within designation period), 224 (PCT entered designated state after designation period), and 225 (PCT did not enter designated state after designation period) Example: {}
`simpleLegalStatus`	`string`	optional	Comma-separated simplified patent legal-status codes. Values: 0 (inactive), 1 (active), 2 (pending), 220 (PCT designation period expired), 221 (within PCT designation period), and 999 (unconfirmed) Example: {}
`assignees`	`string`	optional	Applicant or patent owner (maximum 1,000 characters) Example: {}
`applyStartTime`	`string`	optional	Patent application start date in yyyyMMdd format Example: {}
`applyEndTime`	`string`	optional	Patent application end date in yyyyMMdd format Example: {}
`publicStartTime`	`string`	optional	Patent publication start date in yyyyMMdd format Example: {}
`publicEndTime`	`string`	optional	Patent publication end date in yyyyMMdd format Example: {}
`limit`	`integer`	optional	Number of patents to return, from 1 to 100. Default: 10 Example: 10
`offset`	`integer`	optional	Result offset, from 0 to 1,000. Default: 0 Example: 0
`field`	`string`	optional	Result sort field: SCORE (relevance), APD (application date), PBD (publication date), or ISD (grant date). Default: SCORE Example: {}
`order`	`string`	optional	Available when field is APD, PBD, or ISD: desc (descending) or asc (ascending). Default: desc Example: {}
`lang`	`string`	optional	Preferred title language: original (original patent title), cn (Chinese-translated title), or en (English-translated title). Default: original Example: {}
`preFilter`	`integer`	optional	Whether to enable country/LOC pre-filtering: 1 for enabled and 0 for disabled. Default: 1 Example: 1
`stemming`	`integer`	optional	Whether to enable stemming: 1 for enabled and 0 for disabled. Default: 0 Example: 0
`mainField`	`string`	optional	Primary patent fields, including title, abstract, claims, specification, publication number, application number, applicant, inventor, and IPC/UPC/LOC classifications (maximum 1,000 characters) Example: {}
`includeMachineTranslation`	`boolean`	optional	Include machine-translated data in the search Example: false
`scoreExpansion`	`boolean`	optional	Score expansion Example: false
`isHttps`	`integer`	optional	Whether to return images over HTTPS: 1 for HTTPS and 0 for HTTP. Default: 0 Example: 0
`returnImgId`	`boolean`	optional	Whether to return img_id. Default: false Example: false

Response fields

Treat structuredContent as the programmatic API response payload.

Name	Type	Required	Description
`code`	`integer`	required	0 means accepted or successful; nonzero is a platform error.
`cost`	`string`	required	Elapsed milliseconds, never credits; -1 outside web requests.
`data`	`any`	required	Data value used by this API operation.
`msg`	`string \| null`	required	Msg value used by this API operation.
`time`	`string`	required	Server local time: yyyy-MM-dd HH:mm:ss.
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds.

Any of option 1

Name	Type	Required	Description
`data`	`object`	required	Data value used by this API operation.
`data.allRecordsCount`	`integer`	optional	Total number of matching records in the database Example: 1
`data.columns`	`array`	optional	Column definitions used for rendering Example: []
`data.costTime`	`integer`	optional	Execution time reported by the upstream provider. Example: null
`data.costToken`	`integer`	optional	Tokens consumed Example: 1
`data.data`	`array`	optional	Matching patent records Example: []
`data.data[]`	`object`	required	Matching patent records
`data.data[].apdt`	`integer`	optional	Application date (timestamp) Example: 1
`data.data[].apno`	`string`	optional	Application number Example: null
`data.data[].authority`	`string`	optional	Patent authority (country code) Example: null
`data.data[].currentAssignee`	`string`	optional	Current assignee Example: null
`data.data[].imgId`	`string`	optional	Patent drawing img_id, returned only when returnImgId is true Example: example-id
`data.data[].inventor`	`string`	optional	Inventor Example: null
`data.data[].loc`	`array`	optional	LOC classification (Locarno classification number) Example: []
`data.data[].locMatch`	`integer`	optional	Whether a high-weight LOC class matched: 1 for matched and 0 for not matched. Available only when model=1 and field=SCORE Example: 1
`data.data[].originalAssignee`	`string`	optional	Original assignee Example: null
`data.data[].patentId`	`string`	optional	Similar patent ID Example: example-id
`data.data[].patentPn`	`string`	optional	Similar patent number Example: null
`data.data[].pbdt`	`integer`	optional	Publication date (timestamp) Example: 1
`data.data[].score`	`number`	optional	Similarity score; higher values indicate greater similarity. Available only when field is SCORE Example: 1
`data.data[].title`	`string`	optional	Patent title Example: null
`data.data[].url`	`string`	optional	URL of the similar patent drawing Example: https://example.com/image.jpg
`data.dataSnapshotMonth`	`string`	optional	Data snapshot month returned by the upstream provider. Example: null
`data.page`	`integer`	optional	Current page returned by the upstream provider. Example: null
`data.pageItemCount`	`integer`	optional	Item count on the current page returned by the upstream provider. Example: null
`data.pageSize`	`integer`	optional	Page size returned by the upstream provider. Example: null
`data.sourceTool`	`string`	optional	Provider-specific source tool name. Example: null
`data.sourceType`	`string`	optional	Provider-specific source platform type. Example: null
`data.title`	`string`	optional	Provider-specific response title. Example: null
`data.total`	`integer`	optional	Number of records returned in this response Example: 1
`data.totalPage`	`integer`	optional	Total page count returned by the upstream provider. Example: null
`data.type`	`string`	optional	Rendering style Example: null

Any of option 2

Name	Type	Required	Description
`data`	`null`	required	Data value used by this API operation.

Examples

Example arguments

{
  "country": "US",
  "isHttps": 0,
  "limit": 10,
  "model": 4,
  "offset": 0,
  "patentType": "U",
  "preFilter": 1,
  "stemming": 0,
  "url": "https://m.media-amazon.com/images/I/719mRAn2VrL._AC_SL1500_.jpg"
}

Example structuredContent

{
  "code": 0,
  "cost": "-1",
  "data": {
    "allRecordsCount": 1,
    "columns": [],
    "costToken": 1,
    "data": [
      {
        "apdt": 1,
        "imgId": "example-id",
        "loc": [],
        "locMatch": 1,
        "patentId": "example-id",
        "pbdt": 1,
        "score": 1,
        "url": "https://example.com/image.jpg"
      }
    ],
    "total": 1
  },
  "msg": null,
  "time": "2026-01-01 00:00:00",
  "traceId": null,
  "ts": "0"
}