IP Library › Granted Patent US 1,113,533
Granted Patent S1
US 1,113,533 · App. 29/907,282 · Granted Feb 17, 2026

Doorbell

Inventors: Ya-Ru Li (Shenzhen, CN); Wei-Min Chang (New Taipei, TW)
Assignee: AMBIT MICROSYSTEMS (SHANGHAI) LTD.
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Quick Facts
Patent No.
US 1,113,533
App. No.
29/907,282
Granted
Feb 17, 2026
Kind
S1
Claims (1)

The ornamental design for a doorbell as shown and described.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2025
From: AMBIT MICROSYSTEMS (SHANGHAI) LTD.
To: SHENZHEN FULIAN FUGUI PRECISION INDUSTRY CO., LTD.
Reel/Frame 073517/0243 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2024
From: LI, YA-RU; CHANG, WEI-MIN
To: AMBIT MICROSYSTEMS (SHANGHAI) LTD.
Reel/Frame 066030/0599 →
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