Client’s Testimonial:
“I want to express my profound gratitude to you and the Firm for this wonderful news of the approval of my I-140 petition. Your passion, dedication, dexterity, and professionalism made this possible. Even when it looked gloomy, you reassured me that the final result would be good. The manner in which you handled the appeal gave me the confidence that you are doing the needful. I am really grateful and very proud of you. Surely I will be glad to recommend your firm to my friends who will be interested. I will not have a problem with you sharing the success story in the manner you have stated. Once again, a very big thank you.
Chen Attorney has shown a lot of professionalism in preparing my case. They painstakingly look at every detail with the goal of getting the best results. They are very timely in attending to the various stages involved in the case preparation. I must commend their efforts.”
On March 20th, 2025, we received another EB-2 NIW (National Interest Waiver) approval for a Full Professor in the Field of Chemistry (Approval Notice).
General Field: Chemistry
Position at the Time of Case Filing: Full Professor
Country of Origin: Nigeria
State of Residence at the Time of Filing: Nigeria
Approval Notice Date: March 20th, 2025
Processing Time: 17 months, 11 days
Case Summary:
Our team was honored to prepare the EB-2 NIW petition for a distinguished full professor with a Ph.D in chemistry. Committed to I-140 clients, we take a strategic approach, carefully analyzing each case to highlight key strengths and build a compelling petition.
As an expert in the field of inorganic materials chemistry, our client’s proposed endeavor is to continue his research on developing and optimizing nanostructured materials to effectively remove emerging contaminants, microplastics, and radionuclides from water to improve water treatment, desalination, and renewable energy applications.
Furthermore, we demonstrated that his research holds substantial significance, as it provides innovative solutions to improve water sanitation and safeguard public health. His contributions are also essential in addressing environmental challenges, making his work highly valuable to the United States.
To emphasize his expertise, we highlighted his role as a frequent peer reviewer for esteemed industry journals, with at least 7 completed reviews to date.
His impact on the field is further reflected in his extensive body of work, including 81 peer-reviewed journal articles (25 of them first-authored), and 2 co-authored books. His research has garnered 866 citations on Google Scholar, demonstrating its influence within the scientific community.
Additionally, 2 letters from fellow experts were submitted with the petition, offering further validation of his scientific skills and research contributions. One letter specifically noted:
“The results of [Client’s] groundbreaking work, in conjunction with the widespread usage of his research within the scientific community, set him apart as a foremost expert in his field. His research has had real-world benefits in reducing the economic and environmental impact of metal corrosion in commercial and industrial sectors.”
Considering all these significant factors, we are pleased to share that his NIW petition was approved in 17 months and 11 days, despite receiving an RFE. It has been our privilege to support him throughout this process, and we sincerely wish him continued success in his career and future endeavors.
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 58,000 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 cumulative total of approved cases grew from 600 in 2013 to over 58,000 in 2025.

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