LZ

Lothar R. Zifferer

PH Packless Metal Hose: 4 patents #3 of 3Top 100%
📍 Waco, TX: #32 of 293 inventorsTop 15%
🗺 Texas: #24,375 of 125,132 inventorsTop 20%
Overall (All Time): #891,133 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5311661 Method of pointing and corrugating heat exchange tubing 1994-05-17
5251693 Tube-in-shell heat exchanger with linearly corrugated tubing 1993-10-12
4846148 Heating apparatus and method 1989-07-11
4768495 Heating apparatus and method 1988-09-06
4514997 Tube corrugating die 1985-05-07
4377083 Tube corrugating apparatus and method Dale H. Shepherd 1983-03-22