IP Library › Granted Patent US 1,071,687
Granted Patent S1
US 1,071,687 · App. 29/895,483 · Granted Apr 22, 2025

Knife sharpener

Inventor: Xueying Huang (Wuxi, CN)
Assignee: Wuxi Dongzhi Technology Co., Ltd
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Quick Facts
Patent No.
US 1,071,687
App. No.
29/895,483
Granted
Apr 22, 2025
Kind
S1
Claims (1)

The ornamental design for a knife sharpener as shown and described.

References Cited (8)
US D575125S · Smith · 2008 [cited by examiner]
US D888527S · Cavanaugh, Jr. · 2020 [cited by examiner]
US D911809S · Wu · 2021 [cited by examiner]
US 11103976B2 · Wu · 2021 [cited by examiner]
US 11279003B1 · McMahon · 2022 [cited by examiner]
US D1016108S · Hu · 2024 [cited by examiner]
US D1034140S · Li · 2024 [cited by examiner]
Midsky Rolling Knife Sharpener Kit, Professional Roller Sharpening System Tool, Amazon.com, Dec. 1, 2023. [cited by examiner]