Success Story: EB1a (Aliens of Extraordinary Ability) Approval for Postdoc Researcher of Cancer Biology

On December 28th, 2012, we received another EB1a (Aliens of Extraordinary Ability) Approval for a Postdoc Researcher in the field of Cancer Biology (Approval Notice)


General Field: Cancer Biology
Position at the Time of Case Filing: Researcher
National Origin: China
Service Center: Nebraska


Case Summary:

We at Chen Immigration Law Associates understand the importance of evaluating each case based on the requirements of evidentiary support demanded for a swift approval. Although cases range in their security, it is important to put emphasis on proven strategies developed and implemented in accordance with the needs and requirements of each petition.

In this specific case, the client had spent a significant portion of time in the field of Cancer Biology. However, this client’s work included a longstanding record of experience and achievement in numerous fields combining his unique multidisciplinary training of pathology, biology, and chemistry with pharmaceutical consultation experience, and leading grant positions at internationally-renowned medical centers and organizations. Because this client had such a wide-spectrum of experience, it was important to focus on this client’s largest accomplishments reinforced through testimony from experts in associated fields.

In order to do this, we at Chen Immigration Law Associates drafted eight letters to be reviewed, edited, and signed by recommenders, both associated and unaffiliated with this client. Following this work, we at Chen Immigration Law Associates researched applicable court rulings and Administrative Appeals Office decisions that helped reinforce evidence for a favorable ruling in this case.

Using this proven strategy, while correctly articulating the importance surrounding this client’s valued work, we at Chen Immigration Law Associates were able to secure approval for this petition on December 28th, 2012.

With this in consideration, it is important to emphasize that the processes and expertise practiced by Chen Immigration Law Associates. Not only do we develop the best possible strategies for each case, but we execute these strategies with the utmost effectiveness!


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).

Our Ten Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

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.

We Have Helped Hundreds and Thousands of Clients with Credentials and Backgrounds Similar to Yours

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.

Vast Majority of Clients Came to Us Because of Referrals

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.



If you are interested in filing the green card, please send your CV to law@wegreened.com for our free evaluation. Our attorneys will email you back with the evaluation result within 24 hours.

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Tel: 888.666.0969 (Toll Free)


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