Ingolstadt, Germany

Jürgen Albert Holl

This inventor holds 1 USPTO granted patent. Top assignee: Audi Ag. Active years: 2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jürgen Albert Holl. Retrieved from https://idiyas.com/inventor/jürgen-albert-holl

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 2012

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1 patent (USPTO):Explore Patents

Title: Jürgen Albert Holl and His Oil-Filter Invention.

Introduction

Jürgen Albert Holl is an inventor associated with Ingolstadt, Germany, and Audi AG. His listed patent concerns an exchangeable oil filter designed with a spring-operated pin to manage oil drainage during filter replacement. Holl is credited with 1 patent.

Latest Patents

Holl’s listed invention, “Exchangeable Oil Filter with Spring-Operated Pin for Drainage,” relates to filtering oil circulating in an internal-combustion engine. The device uses an oil-filter adapter that detachably secures the exchangeable filter to the engine block.

The adapter contains a receptacle with an elastically preloaded pin, an oil outflow, a channel, and a drain. During engine operation, the pin clears the outflow while closing the channel and drain. When the filter is loosened from the adapter, spring force moves the pin to open the outflow, channel, and drain. This arrangement is intended to direct oil appropriately during operation and filter removal. The invention also includes a pin designed for use in the device.

Career Highlights

Holl is associated with Audi AG, an automotive company based in Germany. His listed patent addresses a practical maintenance feature for internal-combustion engines by coordinating oil flow with the attachment and removal of an exchangeable filter.

Collaborations

The provided information identifies Xaver Stemmer and Michael Jung as Holl’s coworkers. It does not specify their roles in the patent or whether they collaborated on the invention.

Conclusion

Jürgen Albert Holl’s listed invention combines an exchangeable oil filter with a spring-operated pin mechanism intended to control oil flow during engine operation and filter replacement.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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