Holger Friedrich

This inventor holds 10 USPTO granted patents and 2 published patent applications, plus 3 CIPO patents and 10 EPO patents. Top assignees: Lanxess Deutschland Gmbh, Bayer Chemicals Ag, Philip Morris Products S.a.. Active years: 2006-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Holger Friedrich. Retrieved from https://idiyas.com/inventor/holger-friedrich-pvshwb84

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 10 (Patent Applications = 2)

% Patents Active = 90.0

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 10 (Patent Applications = 5)

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 20(Granted Patents)

Location History:

Krefeld, DE (2006 - 2013)
Newcastle, ZA (2017)
Arnsdorf, DE (2019)

Company Filing History:

8 out of 389

Lanxess Deutschland Gmbh

Philip Morris Products S.a.

patents

Years Active: 2006-2019

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10440990 - Composite heat source for a smoking article (2019-10-15),

2. 9725364 - Method for reducing hexavalent chromium in oxidic solids (2017-08-08),

3. 9663383 - Process for preparing chromium(III) oxide (2017-05-30),

4. 9580333 - Process for preparing chromium(III) oxide (2017-02-28),

5. 8414698 - Pigment/auxiliary combination having improved colour properties (2013-04-09),

6. 7931745 - Black pigment/auxiliary combination having improved colour strength (2011-04-26),

7. 7837785 - Process for the preparation of pigment granules and the use thereof (2010-11-23),

8. 7410536 - Oxidation-stable iron oxide pigments, process for preparing them and their use (2008-08-12),

9. 7387672 - Oxidation-stable iron oxide pigments, process for preparing them and their use (2008-06-17),

10. 7144455 - [object Object] (2006-12-05),

Title: Holger Friedrich - Innovator in Chromium Reduction Technologies

Introduction

Holger Friedrich, an accomplished inventor based in Krefeld, Germany, has made significant contributions to the field of chemical engineering through his innovative approaches to reducing hazardous materials. Holding a total of 9 patents, his work primarily focuses on methods that minimize environmental impacts associated with chromium compounds.

Latest Patents

One of Holger Friedrich's latest inventions is a method for reducing hexavalent chromium in oxidic solids. This innovative process includes the preparation of chromium(III) oxide, which involves reacting alkali metal chromate with gaseous ammonia, followed by hydrolysis, isolation of the hydrolysis product, and calcination. This patent showcases Friedrich's dedication to addressing environmental issues through technological advancements.

Career Highlights

Throughout his career, Holger Friedrich has contributed to renowned companies such as Lanxess Deutschland GmbH and Bayer Chemicals AG. His work in these organizations not only highlights his expertise in chemical processing but also underscores his commitment to developing sustainable solutions in the industry.

Collaborations

Friedrich has collaborated with several notable professionals in his field, including Rainer Ortmann and Matthias Boll. These collaborations have enabled him to leverage a diverse range of expertise and insights, fostering innovation in his research and development efforts.

Conclusion

Holger Friedrich's journey as an inventor is marked by his proactive approach to solving critical issues related to chromium compounds. His contributions through patents and his collaborations with esteemed colleagues and organizations have solidified his reputation as a forward-thinking innovator dedicated to environmental sustainability.

Profile summary based on public USPTO records.