Based on international patent application WO 2016/141977A1, Klein’sche Fields® technology describes a specialized approach to arranging magnetic field structures in medical devices.

The focus is not on the use of individual magnets, but rather on a precisely configured field architecture. Klein’sche Fields are created through a precisely defined arrangement of numerous magnetic poles:

  • microscopically fine-structured field architecture
  • alternating-pole arrangement
  • spatially distributed, deliberately inhomogeneous field structure
  • passive system without a power supply or batteries

This results in a complex magnetic field system with a specific field geometry. Unlike conventional magnetic configurations, the focus is not on achieving the highest possible field strength, but rather on the defined spatial structure of the magnetic fields.
Klein’sche FIelds® technology is based on reproducible physical configurations and is used in various products for human and veterinary applications.

What are Klein’sche Fields?

Klein'sche Fields are a special form of static magnetic field technology characterised by a polymorphic, alternating polarity arrangement of permanent magnets. In contrast to homogeneous magnetic fields, in which the field lines run uniformly, Klein'sche Fields generate a complex three-dimensional pattern of magnetic field gradients. These are created by the spatially alternating arrangement of north and south poles at short intervals and in multiple directions. The result is an inhomogeneous magnetic landscape with locally varying field strengths and directions.

Application concepts

Klein'sche Fields products are designed for flexible and everyday use. Their construction allows them to be worn or used for extended periods without the need for technical devices or power sources. The products are not tied to a specific location and can be used in various everyday situations – at home, in the office, or on the go. Note: They do not replace medical treatment and are not intended for the diagnosis or treatment of any disease.

Product forms & use

Klein'sche Fields products are available in various designs and are designed for different usage situations.

• Pads for targeted application to selected body areas
• Insoles for everyday, house and sports shoes
• Seat cushions for chairs, car seats and other seating surfaces
• Sleeping pads to complement mattresses or underlays

All product variants share the common features of a power-free design with integrated polymorphic magnetic elements and comfortable, easy handling.

Product overview

Comparability requires evidence

What really matters BIORELAX®
Klein’sche Fields®
Comparable products
Multidirectional pole reversal
Varying field strengths
Varying pole spacings and pole areas
Measurement and test records for the field structure
CE marking for medical devices on the product
Pharmacy Central Number / Pharmacy Identification Number (PZN)
Certified Medical Device manufacturing
Intended medical use
Documented clinical benefits
“Made in Germany” quality
Traceable Medical Device Serial or Lot Number - Important for Inspection, Complaints, and Safety

It starts with the field structure. Terms such as "permanent magnet", "multipolar", "alternating polarity", or "uniform magnetic field structure" are not sufficient. What matters is whether the specific field configuration includes multidirectional polarity changes, varying field strengths, as well as varying pole distances and pole surface areas. This is generally not the case with wellness products, which usually have uniform magnetic field structures and therefore do not meet these requirements. Klein'sche Felder meet all of these requirements.

Additional quality characteristics include the CE marking for medical devices and the Pharmaceutical Central Number / pharmacy product code (PZN) on the product, a traceable medical device serial number (each product has its own serial number, or in the case of Klein'sche Felder Pads, a batch number for your safety), certified medical device manufacturing, and Made in Germany quality.

Ultimately, the decisive factor is not the lowest price, but whether a product is capable of delivering the expected benefit at all. For a medical device, the intended purpose and clinical benefit are documented and traceable. If the decisive field structure is not comparable—as is the case with many wellness products, which typically feature a uniform magnetic field structure—the expected support may not be achieved. In such cases, an apparent price advantage may ultimately prove to be the more expensive choice.

Potential consumer deception may occur if magnetic products are advertised using studies or measurement results relating to Klein'sche Felder, even though the products themselves do not contain Klein'sche Felder. In such cases, study and measurement results relating to Klein'sche Felder are transferred to a different product, despite that product lacking the decisive field structure of Klein'sche Felder.

This is precisely why clear CE marking for medical devices is important: it enables traceability, creates transparency, and protects consumers from misleading claims, inaccurate comparisons, and unrealistic expectations.

Compared to electrically powered magnetic field systems: An overview of two different application concepts

Magnetic field systems and Klein'sche Fields differ fundamentally in terms of their structure, handling, and technical implementation. Both concepts are based on magnetic principles, but are used in different forms. Electric magnetic field systems use mats, coils, or cuffs that are connected to a power source. Depending on the device, different electromagnetic field shapes are created, which are used for a defined period of time. While classic magnetic field systems work with electrically generated fields and are usually device-bound, Klein's fields do not require external energy sources and are permanently integrated into various product forms.

Electrically powered magnetic field systems Klein’sche Fields®
Use with electricity or battery Use without electricity or battery
Device-specific application Product-integrated application
Time-limited use Permanent use possible
Electromagnetic fields Permanent magnetic, weak, inhomogeneous magnetic fields
Large-scale application Large-scale application and targeted, local placement
Depending on the power connection Location-independent and flexible

About the inventor: Bernhard Klein

Bernhard Klein, born in Bremen in 1957, acquired his medical expertise through training with the German Armed Forces. From 1983 onwards, he devoted himself extensively to physical applications in the medical technology field.

As a certified medical device manufacturer, he developed an independent technological concept based on polymorphic magnetic structures without an electrical current – ​​the so-called Klein’sche Fields. For many years, he explored magnetic principles and their technical implementation, sharing his knowledge through lectures in Europe and internationally.

Today, the portfolio includes various product solutions using Klein'sche Fields technology, which are handcrafted in Bremen. The aim is to develop high-quality, electricity-free products that impress with their material quality, workmanship, and everyday usability, and are designed for diverse living situations.