Inventor · disambiguated record

James E. Welk

Also filed as: WELK JAMES E

2 granted patents·266 citations·filing 1996–1997

72Inventor score

Technology areasB61L

Files withALTERNATIVE SAFETY TECHNOLOGIE2

Top patents by PatentIndex Score

2 records

0190US5890682ARailway crossing collision avoidance systemALTERNATIVE SAFETY TECHNOLOGIE·Filed 1997·Granted Apr 6, 1999·128 cites·30 claims
0290US5699986ARailway crossing collision avoidance systemALTERNATIVE SAFETY TECHNOLOGIE·Filed 1996·Granted Dec 23, 1997·138 cites·18 claims

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