Law firm or agent

Lei Yu

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1,439 applicationsfiled 2007 to 2026

Allowance rate

71%

−5 pts vs the USPTO range 68% to 73%

Rejections before allowance

0.9

−0.7 vs the USPTO

Months to first action

19.2 mo

+0.6 vs the USPTO

Needed an RCE

−22 pts vs the USPTO

Timeline

Applications by filing year: drag across the years to study a period

Allowed in green, abandoned in red, pending in grey. The figures above and the charts that can be recomputed by filing year follow the span you pick.

Compared with the office

Against every applicant before the USPTO

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Trend

Allowance by filing year

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Domains

Where the applications fall

CPC subclasses

G06F Electric digital data processing68 apps

G01N Investigating or analysing materials38 apps

A61K Medical preparations37 apps

A61B Diagnosis, surgery, identification31 apps

E21B 30 apps

B01D 27 apps

Art units

374626 apps

285225 apps

367823 apps

173321 apps

285519 apps

173617 apps

Examiners met

The examiners seen most, and how it went with each

Hoang M Nguyen12 apps

50%

Jacob F Betit10 apps

40%

Docket Central10 apps

n/a

Xiaowei Su9 apps

78%

Wayne A Langel7 apps

100%

Frederick Lyndon Lagman7 apps

100%

Faye Francis6 apps

50%

Lucas A Stelling5 apps

80%

Bars show the share of decided applications that were allowed.

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Who they file for

Clients with the most applications

XI'AN JIAOTONG UNIVERSITY72 apps

84%

University of Electronic Science and Technology of China62 apps

95%

IPGOAL MICROELECTRONICS (SICHUAN) CO., LTD.45 apps

73%

ZHEJIANG UNIVERSITY40 apps

93%

Haoxiang Electric Energy (Kunshan) Co., Ltd.31 apps

65%

BEIHANG UNIVERSITY26 apps

77%

Sichuan University21 apps

76%

Ningbo University20 apps

80%

Bars show the share of decided applications that were allowed.

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Rejection fingerprint

What gets rejected, by statute

Share of parsed office actions raising each ground; blue is the USPTO.

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What works

Allowance by strategy used

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Interviews

Does an interview help?

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Applications

Every application in the record

Application	Title	Filed	Status	Rejections	RCEs	To 1st action
19587693	Quick-change tool and method for mud pump cylinder liner	2026-05-14	Pending	0	0	n/a
19585352	Tong head structure for drill floor manipulator	2026-05-06	Pending	0	0	n/a
19574185	Timing regulator for outdoor gas apparatus	2026-03-20	Pending	0	0	n/a
15579617	Method and apparatus for adaptive signal processing	2012-01-10	Allowed	1	0	12.0 mo
15566797	Composition and method for controlled release	2015-02-11	Abandoned	4	1	23.0 mo
15164686	Distributed ledger transaction verification	2018-03-12	Allowed	3	0	20.0 mo
15467733	Thermal management of battery assemblies	2021-04-13	Pending	2	1	17.0 mo
15636439	Machine learning model for anomaly detection	2012-05-14	Allowed	1	0	14.0 mo
15562586	Wireless power transfer coil arrangement	2015-06-15	Abandoned	4	1	25.0 mo
15192980	Catalyst for selective hydrogenation	2018-07-16	Allowed	3	0	22.0 mo

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