Prüfeninger Strasse 1
93049 Regensburg

Phone: +49 941-58 62 09-0
Fax: + 49 941-58 62 09-20


Firmungstrasse 4-6
56068 Koblenz

Phone: +49 261-92 17 66-0
Fax: + 49 261-92 17 66-20


Falderbaumstrasse 16a
34123 Kassel

Phone: +49 561-20 86 50-50
Fax: +49 561-20 86 50-53


Simeonstraße 33
54290 Trier

Phone: +49 651-992175-91
Fax: +49 651-992175-27

Hannke Bittner & Partners
is an internationally renowned and dynamic law firm for patent and general law.

For 20 years, we have been successfully supporting medium-sized companies, large, well-known corporations and individual inventors in the field of industrial property protection. Here we act as consultants and represent clients when dealing with government agencies or opposing parties in the fields of mechanical engineering, electrical engineering, physics, chemistry, computer science and medical technology.

In addition to questions on patent, trademark and design law, we act as your competent partner for your questions on employee invention law, the preparation of expert reports, conducting searches and monitoring of intellectual property rights as well as for questions and advice on licensing agreements.

Patent Attorneys/Patent Engineers

Our areas of technological expertise

Mechanical engineering

General mechanical engineering
Automotive engineering
Control technology
Mechanical systems
Transmission technology

Electrical engineering

Electrical engineering


Semiconductor technology
Thin film semiconductor technology

Material sciences
Building physics
Building technology


Inorganic chemistry
Physical chemistry
Organic chemistry
Analytical chemistry
Brewing technology

Information technology

Communications technology
Information technology

Medical technology

Hypodermic syringe system
Catheter technology
Life support systems

Our services

property rights

  • Patent
  • Design
  • Trademark
  • License and contract law
  • Employee inventor rights


  • Patent search
  • Name search
  • Availability search
  • FTO search

Enforcement of your right

  • Representation by patent attorneys and attorneys-at-law in patent, trademark and design infringement proceedings
  • Legal representation by patent attorneys in infringement proceedings
  • Legal representation by patent attorneys in appeal, objection, opposition and nullity proceedings
  • Preparation of infringement opinions by patent attorneys

Key property rights

Patent and utility model

A patent is considered to be the key technical property right. Due to the complex and precise examination procedure, the granted patent as a monopoly right is of very high importance in the industry. It serves to secure the company’s market position and the proprietary know-how. In addition, the term “patented” indicates the high quality of your invention.

The most important prerequisites for the patentability of an invention are:

  • Novelty
  • Inventive step
  • Industrial applicability

When the patent is granted, the property right is valid for a maximum of 20 years from the date of filing.

The subject of a planned patent application must be novel and must have not been made available to the public before the filing date. Otherwise, the invention will be rejected as not being novel. Therefore, it is imperative for every inventor worldwide to maintain secrecy about his or her invention.
In addition to the German patent, whose protection is limited to Germany, there is also a European patent. For globally operating companies, it is also possible to apply for international protection in further countries with just one so-called PCT application. This simplifies the worldwide application process.

In addition to the patent, there is the possibility of registering a technical invention as a utility model. This “small patent” is a so-called unexamined property right, which is therefore often granted quickly. Such a utility model is of interest, for example, for smaller inventions or simple further developments.


Trademarks are used to identify the goods and services of a company so that they can be distinguished from similar goods and services of other companies.

The trademark is your company’s fingerprint!

It serves as a hallmark of quality, an advertising medium or an indication of the country of origin of your goods and services. Trademarks are versatile and can be registered as word components, picture elements, three-dimensional images or as colors. The duration of the protection period is initially 10 years and can be extended as often as desired.


Designs serve to protect two-dimensional objects, such as wallpaper or fabrics, and three-dimensional shapes, such as furniture, accessories, or cars.

If an invention lacks the technicality required for a patent, it is by all means possible to protect the design of the product or a part of the product. The design is therefore to be seen as a completion of the technical property rights. Upon registration, the owner has the sole right of use and may prohibit use by third parties.

The design has a maximum protection period of 25 years.

A formal examination is conducted by the official authorities. The substantive protection requirements (novelty and peculiarity) required for each design are usually only examined in the event of a dispute. This design protection can be applied for either in Germany, or the European Union as well as internationally. Our worldwide network of cooperation partners allows for flexible application preparation as well as the timely submission of the application documents to the respective national offices.

Through our expertise, we can assist you from the initial consultation right through to representing you in the event of a possible infringement process.