Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Single solid thin wall pipe for abrasive material having a gradual transition in hardness

Single solid thin wall pipe for abrasive material having a gradual transition in hardness

US Patent 5379805 · Granted Jan 10, 1995

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tapered boom hose2005
Fiberglass, reinforced concrete hose shut-off valve2005
Concrete hose shut-off valve2004
Coupling units connecting tubular members having a hardened inner wall for carry2004
Coupling units connecting tubular members having a hardened inner wall for carry2004
Flared ends conduit coupling2004
Pipe having replaceable wear resistant lined coupler2002
Pipe having replaceable wear resistant lined coupler2002
Coupling units connecting tubular members having a hardened inner wall for carry2002
Coupling units connecting tubular members having a hardened inner wall for carry2002
Method of forming a composite tubular unit by expanding, low-frequency induction1992
Semi-liquid cementitious spray nozzle apparatus1989