Inventor · Mason, OH, US

David F. Lahrman

24Patents
9h-index
18Co-inventors
72Inventor score

Filing activity: Nov 26, 1984 → Apr 11, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6867390B2 Automated positioning of mobile laser peening head Chemistry; Metallurgy 50 Expired
US5116691A Ductility microalloyed NiAl intermetallic compounds Emerging Cross-Sectional Technologies 28 Expired
US4818118A Coating thickness measurement Physics 23 Expired
US5837385A Environmental coating for nickel aluminide components and a method therefor Emerging Cross-Sectional Technologies 23 Expired
US4634291A Coating thickness measurement Physics 21 Expired
US6752593B2 Articles having improved residual stress profile characteristics produced by laser shock peening Emerging Cross-Sectional Technologies 13 Expired
US6759626B2 System for laser shock processing objects to produce enhanced stress distribution profiles Chemistry; Metallurgy 12 Expired
US5516380A NiAl intermetallic alloy and article with improved high temperature strength Chemistry; Metallurgy 11 Expired
US6664506B2 Method using laser shock processing to provide improved residual stress profile characteristics Emerging Cross-Sectional Technologies 11 Expired
US6875953B2 Method using laser shock processing to provide improved residual stress profile characteristics Emerging Cross-Sectional Technologies 9 Expired
US5116438A Ductility NiAl intermetallic compounds microalloyed with gallium Emerging Cross-Sectional Technologies 9 Expired
US6483578B1 Mechanical gauges for quality assurance of laser peening Physics 5 Expired
US6548782B2 Overlay control for laser peening Chemistry; Metallurgy 5 Expired
US7268317B2 Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating Chemistry; Metallurgy 4 Expired
US6462308B1 Utilizing altered vibration responses of workpieces, such as gas turbine engine blades Physics 4 Expired
US5215831A Ductility Ni-Al intermetallic compounds microalloyed with iron Emerging Cross-Sectional Technologies 4 Expired
US7868268B1 Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating Chemistry; Metallurgy 3 Active
US6412331B1 Shock pressure gauge for laser peening apparatus Chemistry; Metallurgy 3 Expired
US6841755B2 Overlay control for laser peening Chemistry; Metallurgy 2 Expired
US6539773B2 Shock pressure gauge for laser peening apparatus Chemistry; Metallurgy 2 Expired
US9201017B2 Photon doppler velocimetry for laser bond inspection Physics 2 Active
US7906745B2 Bend bar quality control method for laser shock peening Physics 0 Active
USRE43176E1 Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating General 0 Active
US11273521B2 Method and apparatus for laser shock peening ballistic armor Mechanical Engineering; Lighting; Heating 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.