Success Stories: Postdoctoral Fellow in Texas in the Field of Mechanical Engineering Receives NIW Petition Approval 43 Days after Filing


Client’s Testimonial:

“I appreciate your efforts on my I-140 process. I [will] definitely recommend your firm to other people I know who want to apply for green card process […] Again, I greatly appreciate your help [on] my I-140 process and such quick approval.”

On March 4th, 2016, we received another EB-2 NIW (National Interest Waiver) approval for a Postdoctoral Fellow in the Field of Mechanical Engineering (Approval Notice).


General Field: Mechanical Engineering

Position at the Time of Case Filing: Postdoctoral Fellow

Country of Origin: South Korea

Service Center: Texas Service Center (TSC)

State of Residence at the Time of Filing: Texas

Approval Notice Date: March 4th, 2016

Processing Time: 43 Days


Case Summary:

A prominent postdoctoral fellow in the field of mechanical engineering contacted North America Immigration Law Group ( because he needed help with his EB-2 NIW (National Interest Waiver) petition. As a respected researcher in the field of mechanical engineering, our client is responsible for an array of outstanding research projects on the establishment of new formulae for predicting thermoelectric conversion efficiency, and the design of methods for improving the power factor of thermoelectric materials.

Demonstration of the Value of Our Client’s Work:

Based on the information that we obtained and reviewed, we established that our client’s research endeavors affect the national energy industries by supporting successful efforts toward environmental conservation via the implementation of clean energy solutions. We proved that his thermoelectric materials research efforts are contributing to the United States’ development of sustainable energy systems, and that only a handful of researchers with comparable qualifications can attain similarly meritorious research results.

Qualify for the National Interest Waiver:

We were tasked with proving that our client qualifies for the national interest waiver. We started by highlighting his citation and publication record. Our client’s 14 published papers had been cited 66 times, proving that his findings help progress the work of other engineers. We also convinced our client to seek the help of experts in his field by requesting for recommendation letters. These letters supported our claim that our client needs to remain in the United States to progress his research. One of these experts described our client as “… an excellent base of knowledge to draw from. As an independent researcher, he has applied his technical mastery to resolve numerous problems in thermal-mechanical engineering practice. [Client’s] strong capabilities as a researcher have enabled his work to be published in major conference proceedings […]. His unique talent for developing solutions to engineering challenges makes him an invaluable member of this research community.”    

EB-2 NIW Petition Approval:

We are pleased that the USCIS reviewed our meticulously prepared NIW presentation and ultimately agreed that our client deserved to take one step closer to permanent residency. We congratulate our client on this milestone and wish him well as he sets off on the final leg of the green card journey—the I-485 application.



North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

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With more than 16,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

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With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

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For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our approved cases grew from 600 in 2013 to over 3,500 in 2019.

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