Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Shaped tube with elliptical cross-section for tubular heat exchangers and a method for their manufacture

Shaped tube with elliptical cross-section for tubular heat exchangers and a method for their manufacture

US Patent 4766953 · Granted Aug 30, 1988

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of and device for filling a bag having air extracting means2006
Device for filling a bag2006
Method of and device for dispensing bulk material2004
Filling sleeve2004
Dispensing device including a rotatable closing cone2001
Method and device for the spreading and fitting of empty sacks and for grasping 1999
Method and device for the spreading and fitting of empty sacks and for grasping 1998
Cooling arrangement for jet engines1993
Blade device for turbo-engines1993
Thermally stressed, torsionally rigid connection1993
Propfan turbine engine1993
Propelling nozzle for a hypersonic engine1992