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For the Inventor, By the Inventor

Tübingen, Germany

Walter Ag

USPTO Granted Patents = 93

% Expired Patents = 24.7


Trademarks = 16

Forward Citations = 587

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76 inventors (with patents filed for the assignee):

goldMedal Veit Schier (29 out of 31 patents)

silverMedal Wolfgang Engelhart (11 out of 11 patents)

bronzeMedal Dirk Stiens (9 out of 10 patents)

4.  Thorsten Manns (7 out of 7 patents)

5.  Siegfried Bohnet (7 out of 8 patents)

6.  Sakari Ruppi (5 out of 6 patents)

7.  Dominic Diechle (4 out of 4 patents)

8.  Ulrich Albers (4 out of 4 patents)

9.  Kevin Nedzlek (4 out of 4 patents)

10.  Thomas Schneider (4 out of 4 patents)

11.  Rudi Zeeb (3 out of 3 patents)

12.  Lothar Fauser (3 out of 3 patents)

13.  Christian Dilger (3 out of 6 patents)

14.  Harry Rein (3 out of 3 patents)

15.  Siegfried Deiss (3 out of 4 patents)


Core Competencies:
Coated Cutting Tool
Indexable Insert
PVD Coating
Wear-Resistant Coatings
Multi-Layer Coating
Drilling Tool
Tool Manufacturing
Precision Milling Cutter
Alumina Layer
TiAlN Coating
Anti-Vibration Damper
Tool Design

93 patents:

1. 12752344 - Coated cutting tool with an alternating layer composition (2026-10-06),
2. 12722217 - Cutting plate and method and compression mold for producing a green body of the cutting plate (2026-09-01),
3. 12553137 - Coated cutting tool (2026-02-17),
4. 12467126 - Coated cutting tool (2025-11-11),
5. 12276016 - Coated cutting tool (2025-04-14),
6. 12233468 - Indexable cutting insert (2025-02-25),
7. 12188115 - Coated cutting tool (2025-01-07),
8. 12179271 - Press tool and method for forming a cutting insert green body having a through hole (2024-12-31),
9. 12172224 - Thread former (2024-12-24),
10. 12109624 - External and internal turning tool with coolant (2024-10-08),
11. 12037675 - Method for producing a coated cutting tool and a coated cutting tool (2024-07-16),
12. 11548078 - Drilling tool (2023-01-10),
13. 11365483 - Cutting tool with textured alumina layer (2022-06-21),
14. 11326248 - PVD process for the deposition of AlOand a coated cutting tool with at least one layer of AlO (2022-05-10),
15. 11313028 - Wear resistant PVD tool coating containing TiAlN nanolayer films (2022-04-26),
Company Overview
Walter Ag, headquartered in Tübingen, Germany, specializes in cutting tool technology, focusing on the development and manufacturing of precision tools for various machining applications. The company is renowned for its innovative solutions in coated cutting tools, indexable inserts, and wear-resistant coatings, including PVD and multi-layer coatings. Walter Ag's expertise extends to drilling tools and precision milling cutters, catering to the needs of industries that demand high-performance and durable tooling solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Walter Ag USPTO Patent Assignee Logo
93 Patents

#4 in Tübingen

#634 in Germany

#8,299 in the World

Tübingen, DE
Tübingen, Germany

Walter Ag

Forward Citations = 587

76 inventors:

goldMedal Veit Schier (29 out of 31 patents)

silverMedal Wolfgang Engelhart (11 out of 11 patents)

bronzeMedal Dirk Stiens (9 out of 10 patents)

4.  Thorsten Manns (7 out of 7 patents)

5.  Siegfried Bohnet (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Walter Ag. Retrieved from https://idiyas.com/company/walter-ag

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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