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:
Oct. 20, 2026

Filed:

Apr. 15, 2025
Applicant:

Applied Materials, Inc., Santa Clara, CA (US);

Inventors:

Ashley Okada, San Jose, CA (US);

Ming Xu, San Jose, CA (US);

Srikanth Krishnamurthy, Banglore, IN;

Andreas Johannes Jendrzey, Friedberg, DE;

Assignee:

Applied Materials, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/37 (2006.01); G01L 19/00 (2006.01); G01L 13/04 (2006.01);
U.S. Cl.
CPC ...
G01F 1/37 (2013.01); G01L 19/0092 (2013.01); G01L 13/04 (2013.01);
Abstract

A method includes opening a flow path from a gas stick through a variable orifice, a chamber, and an outlet isolation valve of the chamber. The method further includes causing a gas to flow through the flow path at a flow rate setpoint. The method further includes actuating an opening of the variable orifice to establish a choked pressure regime within the chamber, the choked pressure regime being achieved by causing a first pressure upstream of the variable orifice to be at least two times a second pressure downstream of the variable orifice. The method further includes closing the outlet isolation valve to cause the chamber to be filled with the gas from the gas stick. The method further includes measuring a pressure rate-of-rise within the chamber. The method further includes determining one or more flow measurements based at least in part on the pressure rate-of-rise.


Find Patent Forward Citations

Okada, Ashley. (2026). Variably choked pressure rate-of-rise mass flow verifier (U.S. Patent No. 12768690). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12768690

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

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