September 29, 2015 - InSphero Granted Hanging Drop Patent in United States - InSphero

September 29, 2015 – InSphero Granted Hanging Drop Patent in United States

InSphero Granted Hanging Drop Patent in United States

Schlieren, Switzerland, September 29, 2015 – Patent establishes protection of InSphero GravityPLUSTM technology in all major global markets, key milestone for leading provider of 3D cell culture platforms, microtissues and services.  PDF Version

The United States Patent and Trademark Office (USPTO) officially granted InSphero AG full protection of its GravityPLUSTM hanging drop technology. InSphero, the world's leading developer of easy-to use solutions for organotypic 3D cell culture models and body-on-a-chip systems, now holds hanging drop patents in the world's major pharmaceutical and biotechnology markets, including the United States, Europe, China, Japan, and Singapore. The core patent WO2010031194 describes multi-well plates which allow the generation of hanging drops for 3D cel culture, using convenient top loading of the cell suspension.

InSphero commercialized the hanging drop technology as the GravityPLUS™ Hanging Drop System in 2010.  The system includes the GravityPLUS™ plate used for production of 3D spheroids in hanging drops, and also the companion GravityTRAP™ culture and assay plate, to which 3D microtissues are transferred for long-term culture and drug testing.

Dr. Jan Lichtenberg, CEO and co-founder of InSphero, says that the favorable decision has been a long time coming for InSphero.  “We are excited the USPTO has recognized the originality of our design, and granted protection of the investment we have made into the creation of new technology.  This protection allows us to operate unhindered in the US market, gives our customers the added confidence to invest in InSphero technology as their platform of choice for 3D cell culture, and provides the grounds necessary to defend against industry competitors attempting to imitate our technology.”

Granting of the patent on September 8 followed InSphero’s recent completion of a Series C financing round, and August announcement naming PerkinElmer as the exclusive global distributor of InSphero hanging drop and ultra-low attachment (ULA) plates for 3D cell culture.

For more information about InSphero, visit


InSphero contact

Dr. Randy Strube
Director of Global Marketing
Phone +1 800-779-7558 ext. 102
[email protected]

Dr. Jan Lichtenberg
CEO and Co-Founder
Phone +41 44 5150490
[email protected]

About InSphero

InSphero provides superior biological relevance to in vitro testing with its easy-to-use solutions for production, culture and assessment of more organotypic 3D cell culture models. The company's patented 3D cell culture platforms and methods enable large-scale, reproducible production of a broad range of assay-ready 3D InSight™ Microtissues derived from liver, pancreas, tumor, heart, brain and skin. These models and contract research services utilizing them help to identify promising drugs and toxic liabilities with greater predictivity at early development stages, enabling better pre-clinical decision making, saving development cost, and shortening time to market. InSphero's technologies drive significant findings in peer-reviewed journals, through collaborative projects such as EU Body on a Chip and HeCaToS, and validation in the world's largest government institutions and pharmaceutical, chemical and cosmetics companies. This 3D know-how is now also being applied in the diagnostics field to aid development of personalized chemotherapeutic strategies for the treatment of cancer.

Founded in 2009, the privately held company is headquartered in Schlieren, Switzerland with subsidiaries in the United States (Brunswick, ME) and Waldshut, Germany. It has been recognized for its scientific and commercial achievements with a number of national and international awards.

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InSphero Granted Hanging Drop Patent in United States