Trademark attorney

Christine K. Au-Yeung

Wilson Sonsini Goodrich & RosatiUnited States

Christine K. Au-Yeung of Wilson Sonsini Goodrich & Rosati (United States) is listed as the attorney or agent of record on 450 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
450
Still active
245
Registration rate
63%
Latest filingFirst in 2000
2026
Coverage

Where these filings were made

Each mark counts once here: an international registration is grouped with its country designations, not counted once per country.

By office

By classA mark can cover several classes

+25 more

Activity

Filings per year

New filings of record each year, counting each mark once.

Peak year · 67 filed
2016
2022 to 2026 · filed
160
First filing
2000

Filings by year: 2000: 1, 2001: 1, 2002: 3, 2004: 1, 2005: 3, 2006: 1, 2007: 1, 2009: 4, 2010: 1, 2011: 3, 2012: 14, 2013: 4, 2014: 17, 2015: 17, 2016: 67, 2017: 37, 2018: 22, 2019: 25, 2020: 32, 2021: 36, 2022: 7, 2023: 31, 2024: 37, 2025: 36, 2026: 49.

Clients

Companies on these filings

Owners on the latest 48 filings of record that Signa links to a company record.

20 more owners in these filings are not linked to a company record.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
[Design Mark]examiningUSPTORoblox Corporation9, 162026-10-21
ALL YOUR FRIENDS ARE HEREexaminingUSPTOSpotify AB9, 35, 38, 41, 422026-10-07
PANGRAMexaminingUSPTOPangram Labs, Inc.9, 442026-10-05
DAYLISTexaminingUSPTOSpotify AB9, 35, 38, 412026-09-30
DAYLISTexaminingUSPTOSpotify AB9, 35, 38, 412026-09-30
DAYLISTexaminingUSPTOSpotify AB9, 35, 38, 412026-09-30
DAYLISTexaminingUSPTOSpotify AB9, 35, 38, 412026-09-30
DAYLISTexaminingUSPTOSpotify AB9, 35, 38, 412026-09-30
API

Get this data via the API

Every number on this page comes from the Signa API. Pull the same records into your own product with one request.

  • GET/v1/attorneys/{id}

    Attorney record, firm and filing stats

  • GET/v1/attorneys/{id}/analytics

    Filings by office, class and year

  • GET/v1/attorneys/{id}/trademarks

    Every trademark the attorney is of record on

Get API keyView docs
GET /v1/attorneys/{id}
ID=att_019d1dde-fd49-73a7-9008-161d421410b0
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d1dde-fd49-73a7-9008-161d421410b0",
  "object": "attorney",
  "name": "Christine K. Au-Yeung",
  "firm_name": "Wilson Sonsini Goodrich & Rosati",
  "country_code": "US",
  "trademark_count": 450
}