DeltaTrak and the University of South Florida Awarded U.S. Patent to Better Assess Transport of Perishable Products

Monday October 16 2023


Pleasanton, Calif. (Oct 18, 2023) - DeltaTrak, leading innovator of cold chain and supply chain management solutions, and the University of South Florida, were jointly issued a patent by the U.S. Patent and Trademark Office for the development of a robust, modular, product sensitive approach to monitoring and encoding the quality of perishable goods along the supply chain.

In a temperature-dependent supply chain for perishable products, also known as the "cold chain," different transportation temperature ranges are acceptable for various product categories. For example, fresh flowers, seafood, and most produce typically travel at temperatures between 36 and 46 degrees. While some less-sensitive produce, such as asparagus and avocados, may only require protection from extreme temperature variations.

Temperature abuses in the cold chain frequently occur, leading to increased food waste and safety concerns. Around 12% of food waste in the U.S. happens during distribution due to inappropriate refrigeration. Monitoring perishable products exposed to temperature variations along the supply chain is crucial to prevent shipping products with reduced shelf life. Current algorithms predict the shelf life of perishable products but don't comprehensively consider product and transportation quality.

“To address these issues, we created a system and method to estimate product conditions upon arrival at a destination and objectively quantify temperature management quality from harvest to destination,” said Fred Wu, DeltaTrak CEO.

The invention aims to enhance post-harvest monitoring and modeling of the perishable supply chain using sensors and analytics. It introduces a quality code for perishable products, which includes three key components: an initial cooling score, a transportation temperature score, and a predicted remaining shelf-life score. These scores are generated using temperature profiles and known effects on the product.

“The system includes sensors, processing hardware, and software to calculate the quality code, which is alphanumeric,” said Ismail Uysal, Ph.D., Associate Professor & Undergraduate Director at the University of South Florida’s Department of Electrical Engineering. “The quality code can be used to improve quality control during product inspection at destinations, pinpoint issues in the supply chain, and enhance efficiency with automated predictive algorithms,” which can include AI and machine learning based analytics.

For instance, it can tell if the product's quality suffered because it took a long time to cool down or because the temperature inside the shipping container was too high. Typically, experts would need to analyze temperature logger data to make such assessments, but with this quality code, it's easy to pinpoint supply chain issues.

The new system addresses the need to assess and improve the quality of perishable products in the cold supply chain by providing a comprehensive quality code that considers both product and transportation quality which will lead to reduced waste, improved product quality, and an increase in shelf life.


About DeltaTrak

DeltaTrak is a leading innovator of cold chain management solutions, real time tracking devices and data analytics for temperature sensitive and other high-value commodities. Our Cold Chain Solutions are used by thousands of clients worldwide to provide visibility of domestic and international shipments. Contact your DeltaTrak account manager or call DeltaTrak Sales at 800-962-6776.

About the University of South Florida

The University of South Florida, a high-impact research university dedicated to student success and committed to community engagement, generates an annual economic impact of more than $6 billion. With campuses in Tampa, St. Petersburg and Sarasota-Manatee, USF serves approximately 50,000 students who represent nearly 150 different countries. U.S. News & World Report has ranked USF as one of the nation’s top 50 public universities for five consecutive years, and this year USF earned its highest ranking ever among all universities public or private. In 2023, USF became the first public university in Florida in nearly 40 years to be invited to join the Association of American Universities, a prestigious group of the leading universities in the United States and Canada. Through hundreds of millions of dollars in research activity each year and as one of the top universities in the world for securing new patents, USF is a leader in solving global problems and improving lives. USF is a member of the American Athletic Conference. Learn more at?


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  • DeltaTrak’s Real Time Loggers have been a game changer for our trucking program. Having the ability to monitor temperature while trucks are in transit has given us peace of mind knowing the quality of our product has not been compromised. The alert notifications, light sensors, and GPS tracking are just some of the great features that have allowed us to make pro active decisions that have strengthened the integrity of our product. The FlashTrak Cloud Service is easy to use and is a great tool to compare and analyze data. The FlashTrak App is super convenient as well. We have used other reliable DeltaTrak products for many years and we were excited to see these added to their lineup!

    Michelle Oetjens
    Senior Global Logistics Analyst-BFP
    Ball Horticultural Company

  • When it comes to making sense of data (in the supply chain) we have found a partner in DeltaTrak. The fact that I could recharge the real-time logger and the dual batteries made a lot of sense to me. It was user friendly and easy to use. With the uncertainty and complexity of today's supply chain, having an effective chain of custody system is not only a clever idea, but a requirement for effective handling of perishable goods.

    Henry Helms
    CH Logistics, Cape Town, South Africa

  • It is my pleasure to recommend DeltaTrak to your company. During these times of crisis, we were fortunate to work with DeltaTrak to source top of the line Non-Contact forehead thermometers and PPE supplies at a real market price.

    As a healthcare organization, we are a common target for price gouging and abusive practices from several vendors. With DeltaTrak, we found a partner that understands our needs and who always provide world class customer service.

    Luis Landgrave
    Procurement Manager
    Plum Healthcare Group LLC

  • Dear Fred, I would like express my appreciation for the good business relationship we have had during 2018. The excellent work of Mr. Jorge Hurtado has given me the confidence to continue maintaining our commercial relationship with the DeltaTrak brand.

    Mr. Jorge Hurtado's customer service efforts are outstanding, especially in finding solutions to the challenges that may arise in the commercial process. In my opinion Mr. Hurtado's professionalism is a model for any company, especially when the client is thousands of kilometers away from Modesto, CA. I look forward to strengthening our successful relationship into 2019.

    Valentin Bobadilla
    Valentin Bobadilla Centurion E.I.R.L.

  • We received the blankets yesterday and the quality was/is outstanding. Thank you for getting us a superior product, both our flowers and our customers thank you. :)

    Clint C.
    Aladdin's Floral

  • We have provided our trucks with your recorders for Walmart/Sam's and have not had any issues at all. Great recorders, small in size and easy to activate and place in the truck.

    Diego Calderon
    Delano Farms Company

  • Thank you Juan Solorzano for paying us a business call 4 years ago. The DeltaTrak brand is the majority of our Temp Recorder business. ALL our Walmart/Sam's orders carry the DeltaTrak Temp recorders for the past 4 years without a single problem with any Walmart DC. When you have a load of 18 different orders on a single truck and temp recorders on each order, WOW what a savings your DeltaTrak brand has save us. Yes, Walmart has accepted the DeltaTrak Model with no problems.

    Tony Contreras
    The Giumarra Companies, Reedley Cold Storage

  • This upcoming fall will mark our 4th full season using DeltaTrak recorders. They are competitively priced and the customer service is always exceptional. We have never had a customer issue with one of their units and we don’t expect to. We use a wide range of DeltaTrak products and we have been more than happy with every one of them.

    Bruce Densten
    Little Bear Produce