Location History:
- Hilden, DE (1987 - 1991)
- Erkrath, DE (1997 - 2008)
Company Filing History:
30 out of 2,080 
2 out of 180 Years Active: 1987-2008
Title: Detlef Hollenberg: Innovator in Hair Dyeing Technology
Introduction: Detlef Hollenberg, based in Erkrath, Germany, is a prominent inventor with a remarkable portfolio of 32 patents. His innovations primarily focus on advanced methods for dyeing keratin-containing fibers, which have significantly impacted the cosmetics industry, particularly in hair care.
Latest Patents: Among his latest inventions, Hollenberg developed a method for dyeing fibers containing keratin. This innovative approach outlines a comprehensive procedure that includes several steps: contacting hair with a specially formulated dyeing composition for a set contact time, rinsing the hair to remove excess dye, and optionally drying the hair. Additionally, his method allows for the use of a lightening or nuancing agent to enhance or adjust the hair color further. Notably, one of the key aspects of his patent involves the use of 5,6-Dihydroxyindolines as additives, which improves the color fastness of hair dyeing preparations.
Career Highlights: Hollenberg’s career includes significant contributions while working at Henkel Kommanditgesellschaft Auf Aktien and Henkel Kommanditgesellschaft Auf Aktien (Henkel KGaA). His role at these companies has allowed him to pioneer advancements in hair dye technology, making him a noteworthy figure in the industry.
Collaborations: Throughout his career, Hollenberg has collaborated with various experts, including Reinhard Mueller and Hans Schneider. These collaborative endeavors have further enriched his work, allowing for a cross-pollination of ideas and innovations within the field of cosmetic chemistry.
Conclusion: Detlef Hollenberg's contributions to hair dyeing technology are substantial, underscoring his status as a leading inventor in the cosmetic industry. With his extensive list of patents and collaborative efforts, Hollenberg continues to influence the development of innovative solutions for hair care, benefiting both consumers and the industry as a whole.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.