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For the Inventor, By the Inventor

Berlin, Germany

Mental Images Gmbh


USPTO Granted Patents = 41

% Expired Patents = 29.3



Trademarks = 2

Forward Citations = 435

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18 inventors (with patents filed for the assignee):

goldMedal Alexander Georg Keller (24 out of 65 patents)

silverMedal Carsten Alexander Waechter (6 out of 15 patents)

bronzeMedal Rolf Herken (5 out of 11 patents)

4.  Silviu Borac (4 out of 4 patents)

5.  Kristjan Valur Jonsson (4 out of 5 patents)

6.  Holger Dammertz (3 out of 3 patents)

7.  Max Wardetzky (3 out of 3 patents)

8.  Martin Grabenstein (2 out of 4 patents)

9.  Jacopo Pantaleoni (1 out of 20 patents)

10.  Hakan Andersson (1 out of 2 patents)

11.  Martin Stich (1 out of 11 patents)

12.  Martin-Karl LeFrancois (1 out of 2 patents)

13.  Thomas Driemeyer (1 out of 5 patents)

14.  Sabrina Dammertz (1 out of 1 patent)

15.  Tom-Michael Thamm (1 out of 1 patent)


Core Competencies:
Ray Tracing
Image Synthesis
Hierarchical Occlusion Culling
Low-Discrepancy Sequences
Photon Mapping
Meshless Finite Elements
Shading Techniques
Markov Chains
Subdivision Surfaces
Deterministic Methodologies
Spatial Partition Hierarchies
Real-Time Rendering

41 patents:

1. 9007393 - Accurate transparency and local volume rendering (2015-04-14),
2. 8259106 - Low-dimensional rank-1 lattices in computer image synthesis (2012-09-04),
3. 8248416 - Efficient ray tracing without acceleration data structure (2012-08-21),
4. 8188997 - Accelerated ray tracing using shallow bounding volume hierarchies (2012-05-29),
5. 8188996 - Shallow bounding volume hierarchies for accelerated ray tracing (2012-05-29),
6. 8115767 - Computer graphics shadow volumes using hierarchical occlusion culling (2012-02-14),
7. 8102394 - Computer graphics using meshless finite elements for light transport (2012-01-24),
8. 8049753 - Computer graphics methods and systems for generating images with rounded corners (2011-11-01),
9. 7952583 - Quasi-monte carlo light transport simulation by efficient ray tracing (2011-05-31),
10. 7773088 - Simultaneous simulation of markov chains using quasi-monte carlo techniques (2010-08-10),
11. 7764285 - Computer graphics systems and methods for encoding subdivision triangular surfaces (2010-07-27),
12. 7760202 - System and method for generating pixel values for pixels in an image using strictly deterministic methodologies for generating sample points (2010-07-20),
13. 7659894 - Terminating spatial partition hierarchies by a priori bounding memory (2010-02-09),
14. 7616198 - System and computer-implemented method for modeling the three-dimensional shape of an object by shading of a two-dimensional image of the object (2009-11-10),
15. 7589729 - Image synthesis by rank-1 lattices (2009-09-15),
Company Overview
Mental Images GmbH, based in Berlin, specializes in advanced rendering technologies, focusing on ray tracing and image synthesis. The company is recognized for its innovative approaches to Monte Carlo techniques, hierarchical occlusion culling, and photon mapping, which enhance visual realism in digital content creation. With expertise in subdivision surfaces and deterministic sampling, Mental Images contributes significantly to the fields of computer graphics and visual effects, catering to industries such as entertainment, design, and simulation.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Mental Images Gmbh USPTO Patent Assignee Logo
41 Patents

#26 in D-1000 Berlin

#1,246 in Germany

#16,706 in the World

Berlin, DE
Berlin, Germany

Mental Images Gmbh

Forward Citations = 435

18 inventors:

goldMedal Alexander Georg Keller (24 out of 65 patents)

silverMedal Carsten Alexander Waechter (6 out of 15 patents)

bronzeMedal Rolf Herken (5 out of 11 patents)

4.  Silviu Borac (4 out of 4 patents)

5.  Kristjan Valur Jonsson (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mental Images Gmbh. Retrieved from https://idiyas.com/company/mental-images

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

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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