% Expired Patents = 30.8

CIPO Patents = 1

Trademarks = 10

Forward Citations = 107

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4 inventors (with patents filed for the assignee):

George H Eckerdt (11 out of 13 patents)

George Mastrodonato (1 out of 1 patent)

Tom Palmer (1 out of 1 patent)

4. Zu-Nan Li (1 out of 7 patents)

5. George Eckerdt (0 patent)

13 patents: Sort by Forward Citations

1. 11876462 - Methods for storing harvestable energy with excess or unutilized energy and systems thereof (2024-01-16),

2. 9019076 - Security system for containers (2015-04-28),

3. 8919656 - Memory button mount (2014-12-30),

4. 8704635 - Secure web accessed box (2014-04-22),

5. 8690069 - Key combination with electronic memory identifier (2014-04-08),

6. 8624705 - Security system for containers (2014-01-07),

7. 8513544 - Authorization system and method using a weighing scale to control access based on a registered weight of a key and key ring combination (2013-08-20),

8. 7601052 - Key destroyer (2009-10-13),

9. 7128350 - Sliding slam latch strike (2006-10-31),

10. 7051563 - Door key retention security system (2006-05-30),

11. 6547420 - Illuminating computer input device (2003-04-15),

12. 5794993 - Tamper-evident ring (1998-08-18),

13. 4517923 - Animal feeding system (1985-05-21),

Company Overview

Key Systems Corp., headquartered in Taipei, Taiwan, specializes in advanced technology solutions, focusing on the development and manufacturing of high-performance electronic components and systems. The company is known for its expertise in areas such as automation, telecommunications, and industrial control systems. By leveraging innovative engineering practices, Key Systems aims to enhance operational efficiency and reliability across various sectors, contributing to the growth of smart technologies in the region and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

13 Patents

#308 in Taipei

#1,169 in Taiwan

#45,081 in the World

Taipei, Taiwan

Key Systems Corp.

Forward Citations = 107

4 inventors:

George H Eckerdt (11 out of 13 patents)

George Mastrodonato (1 out of 1 patent)

Tom Palmer (1 out of 1 patent)

4. Zu-Nan Li (1 out of 7 patents)

5. George Eckerdt (0 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Key Systems Corp.. Retrieved from https://idiyas.com/company/key-systems

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]

1 patent (CIPO):

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]