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For the Inventor, By the Inventor

Denzlingen, Germany

Lothar Gutjahr

This inventor holds 7 USPTO granted patents. Top assignees: Klockner-Werke Ag, Kloeckner-Werke Ag. Active years: 1976-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lothar Gutjahr. Retrieved from https://idiyas.com/inventor/lothar-gutjahr

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 6

Forward Citations = 63(Granted Patents)


Company Filing History:

goldMedal6 out of 75 
 
Klockner-Werke Ag
 patents
silverMedal1 out of 7 
 
Kloeckner-Werke Ag
 patents

Years Active: 1976-1986

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7 patents (USPTO):Explore Patents
1. 4605367 - Mold closing unit of an injection molding machine (1986-08-12),
2. 4599063 - Injection molding apparatus having die closing and locking means (1986-07-08),
3. 4592714 - Mold closing unit of an injection molding machine (1986-06-03),
4. 4592713 - Mold closing unit of an injection molding machine (1986-06-03),
5. 4592712 - Plastification and injection device for an injection molding machine (1986-06-03),
6. 4245243 - System for registering and sorting out not properly filled deep-drawn (1981-01-13),
7. 3965744 - Equipment for compensating for sensor variations (1976-06-29),

Title: **Lothar Gutjahr: Pioneering Innovations in Injection Molding Technologies**

Introduction

Lothar Gutjahr, a prominent inventor based in Denzlingen, Germany, has made significant contributions to the field of injection molding technology. With a remarkable portfolio of seven patents, Gutjahr's innovations continue to shape the manufacturing landscape.

Latest Patents

Among his latest inventions are two noteworthy patents that enhance the functionality and efficiency of injection molding machines. The first patent involves a mold closing unit that incorporates a hydraulic traveling cylinder and a mold closure retention cylinder for the movable mold clamping plate. This design allows for precise control of the mold cavity volume throughout the injection process.

The second patent describes an injection molding apparatus featuring a hydraulic circuit for movable die operation. This apparatus includes multi-directional control valves and a threaded spindle that adjusts the die's pressure and rate of travel via a stepping motor, ensuring optimal performance during operation.

Career Highlights

Throughout his career, Gutjahr has held pivotal roles in reputable companies, including Klockner-Werke AG and Kloeckner-Werke AG. His expertise in hydraulic systems and automation has positioned him as a respected figure in the industry, recognized for his innovative problem-solving abilities and deep understanding of engineering principles.

Collaborations

Lothar Gutjahr has collaborated with talented professionals like Gerhard Grube, further expanding the scope of innovation within his projects. This collaborative spirit underscores the importance of teamwork in driving advancements in engineering and technology.

Conclusion

Lothar Gutjahr's contributions to injection molding technology through his patents showcase the profound impact of innovative thinking in manufacturing. As he continues to push the boundaries of engineering design, his work serves as an inspiration for future inventors and industry leaders alike.

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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