Inventor

JOHN WILFRED

US3 patents

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

WLS KARL HEINZ GRASMANN WEICHL

1 patent

US5192582AMar 9, 1993

Procedure for processing joints to be soldered

WLS KARL HEINZ GRASMANN WEICHL69 citations88

GRASMANN KARL HEINZ WLS

1 patent

US5193739AMar 16, 1993

Process and device for soldering electronic boards, in particular, printed circuit boards with devices installed on them

GRASMANN KARL HEINZ WLS10 citations62

KRUEGER OLAF

1 patent

US8455355B2Jun 4, 2013

Method for producing through-contacts in semi-conductor wafers via production of through-plated holes

KRUEGER OLAF0 citations31