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Utermöhlen Cryo Professional Portable Cryosurgical System Timeline

Both Utermöhlen and Gebauer Company are family-owned medical device companies with more than 120 years of expertise in product development and distribution.

Learn more about the history of the Cryo Professional portable cryosurgical system, previously introduced to the market as Histofreezer®.

Chronological Overview of Histofreezer®
Ownership and Manufacturing

Timeline 1
Late 1980’s

Invention of Histofreezer®

Histofreezer® was invented by Dutch general practitioner Dr. Willem Swart. This patent (US patent 4,865,028) covered an aerosol canister with Dimethyl Ether and ‘Fluffy’ cotton wool applicators. Utermöhlen obtained the exclusive rights to this “Swart” patent and started manufacturing & marketing the Histofreezer® initially in several European countries and starting in 1991 in the USA through its distributor STC Technologies (to become OraSure Technologies later).
foam applicator
1993

Foam Applicator

While looking for increased performance a new patent was applied for by Utermöhlen introducing the current foam applicator (US patent 5,738,682 – K. Jensma) to replace the old ‘fluffy’ cotton wool applicator. This turned out to be a good step forward and led to increased sales in many countries, including the USA.
Timeline 1 (2)
1998

OraSure

OraSure Technologies acquired the rights to the patents, trademark, and business from Utermöhlen. Under a manufacturing agreement, Utermöhlen continued to manufacture Histofreezer® for OraSure until 2015.
Timeline 1 (4)
2015

Patent Expiry

Around this time the relevant patents owned by OraSure expired.
Timeline 1 (5)
2016

Cryo Professional

As Utermöhlen was now free of obligations towards OraSure, Utermöhlen started manufacturing the same product in 2016 under the Cryo Professional brand and has achieved a dominant position in many territories.
Timeline 1 (3)
2018

Lawsuit

OraSure contested Utermöhlen’s right to market Cryo Professional (claiming know-how ownership). Utermöhlen successfully defended the case.
Cryo 9
2021

Brand Acquired

The Histofreezer® brand was acquired from OraSure by CryoConcepts LP.
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Frequently Asked Questions About Utermöhlen

Who is Utermöhlen?

Why is Gebauer Company involved with Utermöhlen and the Cryo Professional product?

How is Cryo Professional different than the original product introduced to the US in 1991?

How are “H” type aerosol cryosurgical systems different than “V” type systems?

Why use Cryo Professional instead of liquid nitrogen?

What is the shelf life of Cryo Professional?

Is Cryo Professional flammable?

What are the storage requirements for Cryo Professional?

Does Cryo Professional require HAZMAT shipping?

How many treatments will each Cryo Professional kit provide?

Are demonstration or sample kits available?

Can I order extra applicators or canisters of cryogen separately?

What types of lesions can be treated with Cryo Professional?

Is Cryo Professional effective on cancerous lesions?

What is the procedure and how long should a frozen applicator be applied when treating a lesion?

Can applicators be reused?

Can applicators be frozen more than once?

Can Cryo Professional be used during pregnancy or breastfeeding?

Can Cryo Professional be used on small children?