logo

For the Inventor, By the Inventor

King of Prussia, PA, United States of America

Check Mate Systems, Inc.


USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 69

Loading Chart...
Loading Chart...

1 inventor (with patents filed for the assignee):

goldMedal Terry A Keifer (2 out of 3 patents)


2 patents:

1. 4620182 - Security apparatus for retail goods (1986-10-28),
2. 4380097 - Product monitoring device (1983-04-19),
logo

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#40 in King of Prussia, PA

#3,359 in Pennsylvania

#92,558 in US

...
King of Prussia, PA, United States of America

Check Mate Systems, Inc.

Forward Citations = 69

1 inventor:

goldMedal Terry A Keifer (2 out of 3 patents)

Please report any incorrect information to support@idiyas.com
Loading…