Success Story: NIW Approved Without RFE for a Mechanical Engineering Researcher Advancing Additive Manufacturing and Thermal Systems
Client’s Testimonial:
"I sincerely appreciate the Chen Immigration Team’s guidance and support during this process. Thank you again for your help in achieving this important milestone."
On July 20th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Postdoctoral Researcher in the Field of Mechanical Engineering (Approval Notice).
General Field: Mechanical Engineering
Position at the Time of Case Filing: Postdoctoral Researcher
Country of Origin: Colombia
State of Residence at the Time of Filing: Texas
Approval Notice Date: July 20th, 2026
Processing Time: 12 months, 27 days (Premium Processing Upgrade Requested)
Case Summary:
We are pleased to share that the client’s I-140 NIW petition was approved without receiving a Request for Evidence (RFE). The client holds a Ph.D. in mechanical engineering and is engaged in advanced research aimed at improving engineering systems and material performance.
Research Focus
The client’s proposed endeavor was to continue developing advanced computational and experimental methods in mechanical engineering. We presented this work as important because it supports sustainable engineering, energy efficiency, and critical applications in defense, aerospace, energy, and infrastructure. At the time of filing, the client was conducting related research in a university setting, which helped show continued progress in the same area.
Evidence of Professional Record
The client’s record included 9 peer-reviewed journal articles, 3 first-authored conference abstracts, 1 accepted first-authored conference abstract, and 64 citations. We emphasized the client’s publication record, citation impact, government-funded research support from the Army Research Office (ARO), the Department of Energy’s National Nuclear Security Administration (NNSA), and the Nuclear Regulatory Commission (NRC), and 2 recommendation letters from experts in the field. In their letters, the experts highlighted the client’s strong technical background and research potential. One expert noted:
"[Client’s] expertise in mechanical engineering makes him an excellent researcher to pursue research on derivative-enhanced thermo-economic design and optimization of thermal systems."
How We Demonstrated Significance
We explained that the citation count was meaningful in context because one of the client’s papers ranked among the top 20% most-cited Engineering articles for its publication year. We also showed that independent researchers had relied on the client’s work in studies involving additive manufacturing, thermal modeling, and heat exchanger performance.
Why the Case Met the NIW Standard
We demonstrated that the client’s work had substantial merit and national importance because it addressed advanced manufacturing, energy efficiency, sustainable infrastructure, and defense- and aerospace-related engineering needs. We also showed that the client was well positioned through advanced training, publications, citations, recommendation letters, funded research support, and ongoing work aligned with the proposed endeavor.
Approval
USCIS approved the client’s I-140 NIW petition after 12 months and 27 days, without an RFE. We congratulate the client and wish the client continued success in advancing mechanical engineering research in the United States.

