Prosecution Insights
Last updated: October 02, 2026

Examiner: LIEUWEN, CODY J

Tech Center 3700 • Art Units: 3752

This examiner grants 60% of resolved cases

Analysis

Cody J. Lieuwen is a patent examiner in Tech Center 3700, working within Art Unit 3752. The examiner has handled 547 resolved cases. The data shows an allowance rate of 59.8 percent for these applications. This rate provides a baseline for the likelihood of obtaining a patent grant during prosecution with this examiner.

The interview lift is 46.0 percent, which represents a substantial increase in the probability of allowance following an interview. When compared to the 59.8 percent allowance rate, this 46.0 percent lift suggests that oral advocacy is a productive strategy. The median days to allowance for cases assigned to Lieuwen is 1066. This figure establishes the expected timeframe for successful prosecution.

Practitioners in Art Unit 3752 should consider the impact of the 46.0 percent interview lift on their strategy. The 1066 median days to allowance indicates the typical duration of the process. With 547 resolved cases, the examiner has a consistent track record. The 59.8 percent allowance rate suggests that while rejections occur, nearly half of the cases benefit from the specific lift provided by interviews.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

59.8%
Allow Rate
-10.2% vs TC avg
596
Total Applications
+46.0%
Interview Lift
1066
Avg Prosecution Days
Based on 547 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
23.7%
§102 Novelty
42.7%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18452192 DEVICE FOR CONTROLLING, AS A FUNCTION OF AT LEAST ONE PARAMETRIZED CRITERION, A SYSTEM FOR JETTISONING FLUID FOR A FIREFIGHTING HOST AIRCRAFT Non-Final OA Airbus SAS
18549607 COATING DEVICE, CARTRIDGE, COATING GUN BODY, AND METHOD OF EJECTING MIXTURE Non-Final OA KAWASAKI MOTORS, LTD.
18869137 CLEANING DEVICE Non-Final OA KOITO MANUFACTURING CO., LTD.
18375744 FIRE PROTECTION SPRINKLER ASSEMBLY Non-Final OA Tyco Fire Products LP
18004392 ELECTRONIC DRY SPRINKLER ASSEMBLY Non-Final OA Tyco Fire Products LP
17771774 CARTRIDGE MONITORING SYSTEM AND COUPLER Non-Final OA Tyco Fire Products LP
18427104 ADHESIVE SPRAY NOZZLE AND METHODS OF USING THE SAME Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18428117 SYSTEM AND METHOD FOR AN AGRICULTURAL APPLICATOR Non-Final OA CNH Industrial America LLC
19074561 SPRAYING SYSTEM COMPRISING A NOZZLE HOLDER WITH A VIBRATION SENSOR Non-Final OA EXEL INDUSTRIES

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