Prosecution Insights
Last updated: May 29, 2026

Examiner: TIETJEN, MARINA ANNETTE

Tech Center 3700 • Art Units: 3753 3799

This examiner grants 75% of resolved cases

Performance Statistics

75.0%
Allow Rate
+5.0% vs TC avg
985
Total Applications
+20.7%
Interview Lift
956
Avg Prosecution Days
Based on 964 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
11.3%
§102 Novelty
75.6%
§103 Obviousness
12.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18730063 MAGNET ASSEMBLY FOR A FUEL INJECTOR, AND FUEL INJECTOR Non-Final OA Robert Bosch GmbH
18872583 FUEL INJECTION VALVE Non-Final OA HITACHI ASTEMO, LTD.
18515285 SOLENOID VALVE Non-Final OA HL MANDO CORPORATION
18982724 TANKLESS WATER HEATER ISOLATION VALVE ASSEMBLY Non-Final OA Watts Regulator Co.
18990230 ELECTROMECHANICAL CONNECTION DEVICE AND DIRECTIONAL CONTROL VALVE EQUIPPED THEREWITH Non-Final OA Festo SE & Co. KG
18875202 UNLOADING VALVE AND A GAS LIFT SYSTEM AND A METHOD OF INSTALLING SUCH A GAS LIFT SYSTEM Non-Final OA SHELL USA, INC.
18874533 HIGH-THROUGHPUT LOAD LOCK CHAMBER Non-Final OA ASML Netherlands B.V.
18859025 VAPORIZATION SYSTEM AND SEMICONDUCTOR PROCESS EQUIPMENT Non-Final OA BEIJING NAURA MICROELECTRONICS EQUIPMENT CO., LTD.
18856874 LIQUEFIED PETROLEUM GAS FAUCET Non-Final OA Avishai EDRI
18771785 HEATER OPTIMIZED BALL VALVE Non-Final OA A & N Corporation
18714693 VALVE CONTROL APPARATUS AND METHOD Non-Final OA KOPVA LTD
18594818 3D Printed Multiport Vacuum Chamber Non-Final OA University of the Incarnate Word
18287345 VARIABLE ORIFICE ROTARY VALVE FOR CONTROLLING GAS FLOW Final Rejection ORIGIN MEDICAL DEVICES INC.

Facing This Examiner?

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

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month