Growing community of inventors

Ludwigsburg, Germany

Hartmut S Engel

Average Co-Inventor Count = 1.05

ph-index = 12

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 462

Hartmut S EngelKurt Hesse (1 patent)Hartmut S EngelManfred Petschulat (1 patent)Hartmut S EngelPatrick Gassner (1 patent)Hartmut S EngelKurt Hesse (1 patent)Hartmut S EngelHartmut S Engel (37 patents)Kurt HesseKurt Hesse (9 patents)Manfred PetschulatManfred Petschulat (5 patents)Patrick GassnerPatrick Gassner (3 patents)Kurt HesseKurt Hesse (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (22 from 832,812 patents)

2. Zumtobel Lighting Gmbh (1 from 202 patents)

3. Staff Kg (1 from 3 patents)

4. Luederlitz Licht Gmbh (1 from 1 patent)

5. Engel, Hartmut S. (0 patent)


37 patents:

1. 12031344 - Sanitary installation and associated angled door

2. 8317354 - Lamp, especially suspended lamp, comprising a first and a second light emitting area

3. 7914170 - Interior light

4. 7874696 - Wall luminaire

5. 7857493 - Luminaire

6. 7841738 - Luminaire having light emitting diodes (leds) directed to a reflector

7. 7780316 - Built-in lamp

8. 7780308 - Recessed light

9. 7753550 - Recessed lighting fixture

10. 7744253 - Built-in light

11. 7635207 - Recessed light

12. 7611257 - Lighting fixture closing mechanism

13. 7607795 - Locking mechanism for light fittings

14. 7465070 - Illumination device

15. D578692 - Dual-light lighting fixture

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as of
12/21/2025
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