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For the Inventor, By the Inventor

Solon, OH, United States of America

Timekeeping Systems, Inc.


USPTO Granted Patents = 14

Trademarks = 15

Forward Citations = 209

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23 inventors (with patents filed for the assignee):

goldMedal Barry J Markwitz (7 out of 7 patents)

silverMedal Dean M Chriss (5 out of 5 patents)

bronzeMedal Jay Cross (4 out of 4 patents)

4.  John E Hansley, Ii (2 out of 2 patents)

5.  Roger W Stahl (2 out of 2 patents)

6.  John W Hoffman (2 out of 2 patents)

7.  Jason D Doyle (2 out of 2 patents)

8.  Paolo Argentieri (2 out of 4 patents)

9.  Michael O'Flaherty (2 out of 3 patents)

10.  Mike O'Flaherty (2 out of 2 patents)

11.  Scott Boswell (2 out of 2 patents)

12.  Tom Dutton (2 out of 2 patents)

13.  Michael Gribov (2 out of 2 patents)

14.  Tom Morman (2 out of 2 patents)

15.  Jim Nicholson (2 out of 2 patents)


14 patents:

1. 11105909 - Tracking system for persons and/or objects (2021-08-31),
2. 10339174 - Automated location visit verification for officer monitoring systems (2019-07-02),
3. 9633541 - Display system for tracking large numbers of persons and/or objects (2017-04-25),
4. RE44217 - Impact resistant electronic data module housing (2013-05-13),
5. D673564 - Downloader (2013-01-01),
6. D630631 - Memory button mount (2011-01-11),
7. 7778802 - Wireless devices as guard tour checkpoint data collection and checkpoint data communication devices (2010-08-17),
8. D615541 - Memory button mount (2010-05-11),
9. 7363196 - Guard tour system (2008-04-22),
10. 7345577 - Displays for reporting guard tour data (2008-03-18),
11. 7027955 - Guard tour system incorporating a positioning system (2006-04-11),
12. 6850418 - Impact resistant electronic data module housing (2005-02-01),
13. 6834259 - Guard tour system (2004-12-21),
14. D427593 - Watchman data downloader (2000-07-04),
Company Overview
Timekeeping Systems, Inc. is a specialized provider of advanced time and attendance solutions, focusing on the development and manufacturing of innovative workforce management technologies. Based in Solon, Ohio, the company emphasizes the integration of hardware and software to streamline employee time tracking and payroll processes. With a commitment to enhancing operational efficiency, Timekeeping Systems serves a diverse range of industries, offering tailored solutions that adapt to the evolving needs of modern businesses.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

14 Patents

#23 in Solon, OH

#940 in Ohio

#22,319 in US

#42,249 in the World

Solon, OH (US)
Solon, OH, United States of America

Timekeeping Systems, Inc.

Forward Citations = 209

23 inventors:

goldMedal Barry J Markwitz (7 out of 7 patents)

silverMedal Dean M Chriss (5 out of 5 patents)

bronzeMedal Jay Cross (4 out of 4 patents)

4.  John E Hansley, Ii (2 out of 2 patents)

5.  Roger W Stahl (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Timekeeping Systems, Inc.. Retrieved from https://idiyas.com/company/timekeeping-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]
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