The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 09, 2024

Filed:

Jan. 27, 2022
Applicant:

Mettler-toledo, Llc, Columbus, OH (US);

Inventors:

Long Qian, Changzhou, CN;

Hao Cao, Changzhou, CN;

Heming Song, Changzhou, CN;

József Varga, Albstadt, DE;

William Miller, Centerburg, OH (US);

Assignee:

Mettler-Toledo, LLC, Columbus, OH (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05F 3/04 (2006.01); H01H 9/48 (2006.01); H01H 13/70 (2006.01); H05K 5/00 (2006.01);
U.S. Cl.
CPC ...
H05F 3/04 (2013.01); H01H 9/48 (2013.01); H01H 13/70 (2013.01); H05K 5/0017 (2013.01);
Abstract

A plastic keypad with data entry elements and at least one display element is protected from electrostatic discharge by an assembly having an overlay substrate on which an electrically-conductive arrangement is disposed. The overlay substrate has a top side and a back side with a precisely-positioned vias formed through the substrate. A top surface of the top side is a layer of a conductive polymer. The back side is printed with at least one layer of color ink that depict a plurality of alpha-numerical and pictorial elements of the keypad. The electrically-conductive arrangement is disposed on the overlay substrate to collect electrostatic charges on the top side, transfer the electrostatic charges to the back side through the plurality of vias and drain the transferred electrostatic charges to a ground.


Find Patent Forward Citations

Qian, Long. (2024). Keypad overlay with electrostatic discharge dissipation (U.S. Patent No. 12035449). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12035449

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…