IP Library Granted Patent US 1,097,404
Granted Patent S1
US 1,097,404 · App. 35/522,167 · Granted Oct 7, 2025

Dust filter for cleaning appliance

Inventors: Baokui Zhang (Beijing, CN); Yiping Qiu (Beijing, CN)
Assignee: Beijing Roborock Technology Co., Ltd.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 1,097,404
App. No.
35/522,167
Granted
Oct 7, 2025
Kind
S1
Claims (1)

The ornamental design for a dust filter for cleaning appliance as shown and described.

References Cited (22)
US D538418S · Pippel · 2007 [cited by examiner]
US D565818S · Fester · 2008 [cited by examiner]
US D655803S · Platt · 2012 [cited by examiner]
US 8187355B2 · Kim · 2012 [cited by examiner]
US D754315S · Morin · 2016 [cited by examiner]
US D809115S · Morin · 2018 [cited by examiner]
US D862017S · Dou · 2019 [cited by examiner]
US D910158S · Kim · 2021 [cited by examiner]
US D980401S · Kenadzir · 2023 [cited by examiner]
US 11638894B2 · Sanders · 2023 [cited by examiner]
US D998919S · Li · 2023 [cited by examiner]
US D998923S · Qiu · 2023 [cited by examiner]
US D999469S · Wang · 2023 [cited by examiner]
US D1000737S · Gong · 2023 [cited by examiner]
US D1011663S · Wang · 2024 [cited by examiner]
US 20230321579A1 · Kang · 2023 [cited by examiner]
US 20240033670A1 · Dirnberger · 2024 [cited by examiner]
WO D220552001 · 2022 [cited by examiner]
Feilifan Accessories for Roborock Qrevo Master Robot Vacuum, . . . Washable Filter, Mop Pad, Dust Bag, available in Amazon.com, date first available Nov. 30, 2024 [online], [site visited Apr. 21, 2025], Available from i… [cited by examiner]
Neutop Replacement Filters Compatible with Roborock, available in Amazon.com, date first available Nov. 29, 2022 [online], [site visited Apr. 21, 2025], Available from internet URL: https://www.amazon.com/dp/B0BNL112N6 … [cited by examiner]
Roborock Original Washable Filter for Qrevo MasterQrevo Slim Robot Vacuum Cleaner, Roborock Robot Vacuum Cleaner Accessories (Pack of 2) downloaded on Aug. 26, 2025. [cited by applicant]
KR_DM239369-1st Office Action mailed Jul. 17, 2025. [cited by applicant]