On The List

UH ranked in top 100 U.S. universities for patents by National Academy of Inventors

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The University of Houston ranks 60th on the National Academy of Inventors’ (NAI) list of the Top 100 Universities in the U.S. Granted Utility Patents.

This new list was created to celebrate American innovation and to highlight the universities that play a large role in advancing the innovation ecosystem within the U.S. and beyond.

Utility patents are among the most valuable assets in the world because they give inventors exclusive commercial rights to produce and utilize their technologies.

UH had 32 patents granted last year, and more than 200 granted since 2015. The University is also home to the nation’s top-ranked undergraduate entrepreneurship program and is one of the top 25 royalty-earning universities in the country.

UH joins the University of Texas (3rd), Texas A&M (37th), Texas Tech (tied for 75th) and Baylor (tied for 75th) as the only Texas institutions ranked.

“This recognition further underscores our commitment to innovation and the impactful research taking place at UH,” says Ramanan Krishnamoorti, vice president of energy and innovation at UH. “It is a testament to the dedication and ingenuity of our faculty, researchers, and students who continue to push the boundaries of knowledge and drive positive change in our world through their hard work and inventive contributions.”

Since 2013, NAI has published a list of the top 100 patent-producing universities worldwide, and UH has made that list seven of the past eight years. This new list is meant to provide a more focused view of the national innovation landscape and the contributions made by U.S. academic institutions.

“As a U.S.-based national academy, it is important to us not only to showcase innovation happening on the broader world stage, but here at home as well,” says Jamie Renee, executive director of the NAI. “Invention has been part of the American experience since the country’s inception, with intellectual property being protected in the Constitution.”

NAI’s Top 100 lists are created using calendar year data provided by the United States Patent and Trademark Office. Top 100 placement includes all named assignees listed on the patent.

“Innovation has always been at the heart of U.S. culture and the Top 100 U.S. Universities list allows us to recognize and celebrate the commitment these universities have to the American tradition of invention and protection of IP,” adds Renee.

The National Academy of Inventors is a member organization comprising U.S. and international universities, and governmental and non-profit research institutions, with over 4,000 individual inventor members and fellows spanning more than 250 institutions worldwide.

It was founded in 2010 to recognize and encourage inventors with patents issued from the United States Patent and Trademark Office (USPTO), enhance the visibility of academic technology and innovation, encourage the disclosure of intellectual property, educate and mentor innovative students, and translate the inventions of its members to benefit society.

The NAI has a close partnership with the USPTO that is reflected in their joint mission to expand access to underrepresented individuals and institutions participating in the invention and innovation ecosystem.

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A View From HETI

Rice University scientists' “recharge-to-recycle” reactor has major implications for the electric vehicle sector. Photo courtesy Jorge Vidal/Rice University.

Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.

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