Prosecution Insights
Last updated: October 27, 2026

Hajar Kolahdouzan, USPTO Patent Examiner

Listed by the USPTO as KOLAHDOUZAN, HAJAR

Tech Center 2800 • Art Units: 2893 2898

This examiner grants 74% of resolved cases

Analysis

KOLAHDOUZAN, HAJAR works in tech center 2800 and art unit 2893. Her record includes 372 resolved cases, an allowance rate of 74.5%, and a median of 1002 days to allowance. The allowance rate shows that allowance occurred in most resolved matters, while the median indicates that prosecution commonly continued for a substantial period.

The interview lift is 22.8%, supporting interviews as a useful complement to written responses. Practitioners may use them to isolate the claim features that drive the examiner's position and to shape a targeted amendment. The listed companies are Samsung Display Co., Ltd., NICHIA Corporation, and Lumileds LLC. The associated firms are ALSTON & BIRD LLP, CANTOR COLBURN LLP, and FOLEY & LARDNER LLP.

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

Performance Statistics

74.5%
Allow Rate
+6.5% vs TC avg
389
Total Applications
+22.8%
Interview Lift
1002
Avg Prosecution Days
Based on 372 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
30.8%
§102 Novelty
59.6%
§103 Obviousness
8.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18049667 LIGHT EMITTING DIODE ARRAY WITH INACTIVE IMPLANTED ISOLATION REGIONS AND METHODS OF FORMING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18296016 LIGHT EMITTING ELEMENT, METHOD FOR FABRICATING LIGHT EMITTING ELEMENT, AND DISPLAY DEVICE INCLUDING LIGHT EMITTING ELEMENT Non-Final OA Samsung Display Co., LTD.
18115947 LIGHT EMITTING ELEMENT, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE LIGHT EMITTING ELEMENT Non-Final OA Samsung Display Co., LTD.
17923509 DISPLAY DEVICE Non-Final OA Samsung Display Co., LTD.
18247936 OPTOELECTRONIC DEVICE WITH A CONTACT LAYER AND A ROUGHENED LAYER ARRANGED THEREON, AND PRODUCTION METHOD Non-Final OA ams-OSRAM International GmbH
17883045 HIGH-SPEED QUATERNARY MATERIAL-BASED PHOTODETECTOR Non-Final OA Mellanox Technologies, Ltd.
17851072 RADIO FREQUENCY SWITCH FOR MULTI-BAND FILTER APPLICATIONS AND METHODS FOR FORMING THE SAME Final Rejection Taiwan Semiconductor Manufacturing Company Limited
18174646 METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT AND LIGHT-EMITTING ELEMENT Non-Final OA NICHIA CORPORATION
17940406 METHOD OF MANUFACTURING NON-CLASSICAL LIGHT SOURCE DEVICE, NON-CLASSICAL LIGHT SOURCE DEVICE, SINGLE-PHOTON SOURCE DEVICE, AND RANDOM NUMBER GENERATOR Final Rejection NICHIA CORPORATION

Facing This Examiner?

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

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Hajar Kolahdouzan's allowance rate?

74.5% of resolved applications examined by Hajar Kolahdouzan were allowed (372 resolved cases), compared with 79.0% across Art Unit 2893 over the last five years.

Does an interview help with examiner Hajar Kolahdouzan?

This examiner's interview lift is +22.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hajar Kolahdouzan take to allow a patent?

Applications allowed by Hajar Kolahdouzan took 1,002 days on average from filing to allowance.

Which art unit does examiner Hajar Kolahdouzan work in?

Hajar Kolahdouzan examines applications in Art Unit 2893 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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