Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DT

Daniel G. Tyler

PEPolyjohn Enterprises: 4 patents #6 of 8Top 75%
Merrillville, IN: #11 of 77 inventorsTop 15%
Indiana: #8,550 of 33,936 inventorsTop 30%
Overall (All Time): #1,230,450 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8091157 Modular portable restroom Jamie P. Kostelyk, Jacob H. Shubinski, Vaughan D. Smith, II, Rodney M. Mullett 2012-01-10
D609413 Portable restroom Jamie P. Kostelyk, Jacob H. Shubinski, Vaughan D. Smith, II, Rodney M. Mullett 2010-02-02
6427256 Knockdown portable toilet Rodney M. Mullett, Jamie P. Kostelyk 2002-08-06
5244109 Adjustable plastic lid for garbage container Rodney M. Mullett, Jamie P. Kostelyk 1993-09-14