University of the Philippines Los Baños

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  The PHTRC Hot-Water Tank® used for disease control and quarantine treatment of fruits is now a registered trademark   (Photo by CV Labe)


The Intellectual Property Office of the Philippines (IPOPHL) granted the Postharvest Horticulture Training and Research Center (PHTRC) of the College of Agriculture two certificates of registration for trademarks for its two intellectual properties: the PHTRC logo and hot-water tank.

The PHTRC logo

The PHTRC logo has been used by the Center since 1985. It has long identified the PHTRC brand and appears in its publications and other information materials.

The overall shape of the main logo is that of a triangle symbolizing instruction, research and extension, as well as the three factors influencing postharvest life of perishable crops: crop characteristics,  environment and  postharvest technologies.  Inside the triangle is a hand holding a circle representing fresh agricultural produce.The shape below the hand represents Mt. Makiling, where UPLB is located. The triangle that spells ‘PHTRC-UPLB’ is enclosed in a circle.

The logo was conceptualized by Dr. Ma. Concepcion C. Lizada, former PHTRC director, and was illustrated by Ed Pasuquin, former PHTRC artist. It was introduced in 1975, a milestone year for PHTRC because it was the time when the Center was turned over to the Philippine government.

The PHTRC Hot-Water Tank®

The second registered trademark is the PHTRC HOT-WATER TANK® that refers to the dipping tank that PHTRC develops every time it conducts studies on disease control and quarantine treatment of fruits using heat instead of chemicals. These studies, which PHTRC started in the early 1980s, involve the development of heat treatment protocols for mango and papaya.

These studies were funded by agencies like the Philippine Council for Agriculture, Aquaculture, Forestry and Natural Resources Research and Development (PCAARRD-DOST) and the Department of Agriculture-Bureau of Agricultural Research (DA-BAR). 

The PHTRC also fabricates hot-water tank units for mango treatment upon the request of entrepreneur-clients.

The shape, size, capacity, and power source of the tank have changed through time, depending on the needs of researches and clients. Responsible for the design and fabrication of the various tank models are Engrs.Marcelino Reyes, Jose de Ramos, Kevin Yaptenco, Emmanuel Amatorio, and Nestor Garcia. Only Amatorio and Garcia are currently working at PHTRC.

Leonisa A. Artes, university extension specialist and assistant extension coordinator of CA-CSC, facilitated the registration of the two trademarks, with the assistance of Dr. Andrea B. Agillon, patent officer of DA-BAR that provided the funds for the registration.