Hermann Landgraf

This inventor holds 16 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Siemens Aktiengesellschaft, Sirona Dental Systems Gmbh. Active years: 1976-2016.

USPTO Granted Patents = 16 (Patent Applications = 1)

% Patents Active = 100.0

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 1.9

ph-index = 10

Forward Citations = 243(Granted Patents)

Location History:

Bensheim, DE (1976)
Heppenheim, DE (1980 - 1987)
Lorsch, DE (1989 - 2016)

Company Filing History:

15 out of 30,854

Siemens Aktiengesellschaft

patents

1 out of 144

Sirona Dental Systems Gmbh

patents

Years Active: 1976-2016

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9433475 - Laser handpiece, exchangeable fiber-optic insert and control unit therefor (2016-09-06),

2. 5655907 - Rotatable tool suitable for high speed drive (1997-08-12),

3. 5433604 - Medical instrument having an internally-cooled tool (1995-07-18),

4. 5423231 - Foot control mechanism for a dental apparatus (1995-06-13),

5. D342720 - Foot switch (1993-12-28),

6. 4874314 - Socket to clampingly hold dental tools (1989-10-17),

7. 4681540 - Dental handpiece arrangement (1987-07-21),

8. 4647081 - Ball catch coupling for releasably connecting two parts permitting (1987-03-03),

9. 4482322 - Device for surface treatment of teeth (1984-11-13),

10. 4462803 - Device for cleaning teeth (1984-07-31),

11. 4460337 - Dental handpiece (1984-07-17),

12. 4278907 - D.C. Subfractional horsepower motor with flux shunt for variable RPM (1981-07-14),

13. 4255143 - Device for releasably connecting two parts of a dental handpiece together (1981-03-10),

14. 4237393 - Drive motor for a dental handpiece (1980-12-02),

15. 4198755 - Dental handpiece (1980-04-22),

Title: Hermann Landgraf: Innovator in Laser Technology

Introduction

Hermann Landgraf is a notable inventor based in Heppenheim, Germany. He has made significant contributions to the field of laser technology, holding a total of 16 patents. His work has advanced the capabilities of laser applications, particularly in medical and dental fields.

Latest Patents

Among his latest inventions is a laser handpiece, which includes an exchangeable fiber-optic insert and a control unit. This innovative laser handpiece features an optical waveguide connected to a light coupling site in a base member. The application element for laser light can be interchangeably attached to the base member, which is mounted in a sleeve-type grip for axial displacement. The design allows for the light guide to be wound around a control device, enhancing its functionality. Another notable patent is a rotatable tool suitable for high-speed drives. This tool includes a shaft for holding the tool in a chucking device, with a tool head designed for improved cooling through a central in-flow channel and multiple out-flow channels.

Career Highlights

Hermann Landgraf has worked with prominent companies such as Siemens Aktiengesellschaft and Sirona Dental Systems GmbH. His experience in these organizations has contributed to his expertise in developing advanced technologies.

Collaborations

Throughout his career, Landgraf has collaborated with notable individuals, including Werner Schuss and Josef Hain. These partnerships have fostered innovation and the development of cutting-edge technologies in his field.

Conclusion

Hermann Landgraf's contributions to laser technology and his impressive portfolio of patents highlight his role as a leading inventor in the industry. His work continues to influence advancements in medical and dental applications, showcasing the importance of innovation in technology.