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USPTO Data Jan 1 1976 - Jan 13 2026
12 Patents
#24 in Fort Wayne, IN
#366 in Indiana
#24,866 in US
#46,824 in the World
Press-Seal Corporation
Forward Citations = 26
15 inventors:
Fort Wayne, IN, United States of America
Press-Seal Corporation
CIPO Patents = 3
EPO Patents = 2
Trademarks = 8
Forward Citations = 26
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15 inventors (with patents filed for the assignee):
James W Skinner (8 out of 35 patents)
Jimmy Dean Gamble (8 out of 10 patents)
John M Kaczmarczyk (6 out of 10 patents)
4. Robert Ryan Slocum (5 out of 5 patents)
5. Graham E Blackwood (4 out of 6 patents)
6. Katherine A Bergfeld (4 out of 6 patents)
7. Michael R Miller (4 out of 51 patents)
8. John Kurdziel (2 out of 11 patents)
9. David Allen Krueckeberg (1 out of 1 patent)
10. John R Kaczmarczyk (1 out of 2 patents)
11. Peter J Skinner (1 out of 1 patent)
12. Jacob L B Morris (1 out of 1 patent)
13. John D Kaczmarczyk (1 out of 1 patent)
14. Daniel Krug Skinner (1 out of 1 patent)
15. Daniel Gunckel (1 out of 1 patent)
12 patents:
5. 10428512 - Manhole base assembly with internal liner and method of manufacturing same (2019-10-01),
6. 10214893 - Manhole base assembly with internal liner and method of manufacturing same (2019-02-26),
Press-Seal Corporation is a leading provider of watertight sealing solutions for the construction industry. With a wide range of products including gaskets, connectors, and manhole rehabilitation systems, Press-Seal ensures that infrastructure projects are protected from water infiltration. With over 50 years of experience, Press-Seal is trusted by engineers and contractors for their quality and reliability.
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3 patents (CIPO):
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2 patents (EPO):
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