Inventor

BRUGGEMANN CHARLES J

US21 patents

⚠️ This page may combine multiple inventors who share the name “BRUGGEMANN CHARLES J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BRUGGEMANN CHARLES J

GEN MOTORS CORP

Hydroforming of compound tubes

Method for hydroforming a vehicle space frame

Hydroformed structural member with varied wall thickness

Method of forming a tubular member with separate flange

Method of joining tubular members

Multi-section support rail apparatus and method of making

Hydroformed and roll-formed cross sill assembly for vehicles and method of making same

Method of joining hydroformed tubular members

Multi-section support rail apparatus and method of making

Structural assembly for vehicles and method of making same

Method of forming thickened tubular members

Method for hydroforming a hollow sheet metal body part

Apparatus for pull spot welding

GM GLOBAL TECH OPERATIONS INC

Method for manufacture of shaped tubular part

Hydroformed tubular members and method of hydroforming tubular members for vehicles

Method for attaching intersecting tubes

Method for forming a complex-shaped tubular structure

Method of making variable thickness tubular member for vehicles

Door beam for motor vehicle

KHAKHALEV ALEXANDER D

Method for one-sided, one step joining of a metal sheet stack

YANG WUHUA

Method of varying material properties