Last updated: August 18, 2026

Examiner: TIETJEN, MARINA ANNETTE

Tech Center 3700 • Art Units: 3733 3753 3799

This examiner grants 75% of resolved cases

Performance Statistics

75.1%

Allow Rate

+5.1% vs TC avg

992

Total Applications

+20.7%

Interview Lift

954

Avg Prosecution Days

Based on 971 resolved cases, 2023–2026

0.3%

§101 Eligibility

28.1%

§102 Novelty

45.1%

§103 Obviousness

24.8%

§112 Clarity

App #	Title	Status	Assignee
19022070	SELECTIVE LASER ETCHING OF LAYERED FLUIDISTORS	Non-Final OA	Meta Platforms Technologies, LLC
19238552	COOLANT CONTROL VALVE	Non-Final OA	Schaeffler Technologies AG & Co. KG
18843950	VALVE DEVICE	Non-Final OA	NOK CORPORATION
19189905	PRESSURE REGULATING VALVE	Non-Final OA	Yanmar Holdings Co., Ltd.
18834823	WATER MANAGEMENT	Non-Final OA	Resideo USA LLC
18408725	SYSTEMS AND METHODS FOR A LIQUIFIED GAS FUEL TANK INCORPORATED INTO AN AIRCRAFT	Non-Final OA	JetZero, Inc.

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.