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For the Inventor, By the Inventor

Wuppertal, Germany

Karl Lieser

USPTO Granted Patents = 12

Average Co-Inventor Count = 1.3

ph-index = 10

Forward Citations = 340(Granted Patents)


Company Filing History:

goldMedal6 out of 23 
 
Wera Werk Hermann Werner Gmbh & Co.
 patents
silverMedal2 out of 8 
 
Adolf Wuerth Gmbh & Co. Kg
 patents
bronzeMedal1 out of 17 
 
Adolf Würth Gmbh & Co. Kg
 patents
4. 1 out of 1 
 
Firma Hermann Werner Gmbh & Co.
 patent
5. 1 out of 1 
 
Hermann Werner Gmbh & Co.
 patent
6. 1 out of 832,718 
Other
 patents

Years Active: 1979-2004

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12 patents (USPTO):Explore Patents
1. 6749790 - Handle for a hand tool and method for the manufacture thereof (2004-06-15),
2. 6640911 - Device for connecting a tool to a drive (2003-11-04),
3. 6629338 - Handle for a tool (2003-10-07),
4. 4884478 - Screw tool (1989-12-05),
5. 4883392 - Fly-cutter milling machine (1989-11-28),
6. 4863321 - Fly-cutter milling machine (1989-09-05),
7. 4739536 - Screwdriver handgrip having harder and softer zones (1988-04-26),
8. 4726720 - Method of milling teeth surfaces from the free end of a workpiece (1988-02-23),
9. 4629375 - Chuck for tool shanks, particularly screwdriver bits (1986-12-16),
10. 4404874 - Screwdriver with replaceable blade (1983-09-20),
11. 4164891 - Machine for simultaneously milling of several grooves in rotating (1979-08-21),
12. 4141278 - Polygonal turning machine (1979-02-27),

Title: The Innovative Contributions of Karl Lieser

Introduction

Karl Lieser is a notable inventor based in Wuppertal, Germany. He has made significant contributions to the field of tool design, holding a total of 12 patents. His work focuses on enhancing the functionality and safety of hand tools, making them more efficient for users.

Latest Patents

Among his latest patents are a handle for a hand tool and a device for connecting a tool to a drive. The latter invention features a coupling element that utilizes a spring washer coupling or clutch, designed to prevent torque peaks during sudden deceleration. This innovation is particularly useful when a tool, such as a screwdriver, strikes a hard surface like wood.

Career Highlights

Throughout his career, Karl Lieser has worked with prominent companies in the tool manufacturing industry. Notable among these are Wera Werk Hermann Werner GmbH & Co. and Adolf Würth GmbH & Co. KG. His experience in these organizations has allowed him to refine his skills and contribute to the development of innovative tools.

Collaborations

Karl has collaborated with talented individuals in his field, including Andreas Dierolf and Jan-Eric Bandera. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in tool technology.

Conclusion

Karl Lieser’s contributions to tool innovation have made a lasting impact on the industry. His patents reflect a commitment to improving user experience and safety in tool design. His work continues to inspire future innovations in the field.

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