Inventor · name-matched record
LIU DEFU
3 granted patents·0 citations·filing 2023–2024
42Inventor score
Technology areasA45B
Files withLINHAI GUOKANG LEISURE PRODUCTS CO LTD3
This identity is grouped by exact name match (no disambiguated inventor record was available for these filings) — it may combine same-named inventors.
Top patents by PatentIndex Score
3 records- 0160US12538966B2Sun umbrella locking deviceLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Granted Feb 3, 2026·0 cites·8 claims
- 0238USD1111765SLocking deviceLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Granted Feb 10, 2026·0 cites·1 claims
- 0337USD1111398SUmbrella handleLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2024·Granted Feb 10, 2026·0 cites·1 claims
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Identity basis: exact name match across USPTO filings. How scoring works →