Inventor · Mülheim, DE

Karl Ries

19Patents
9h-index
23Co-inventors
72Inventor score

Filing activity: Dec 18, 1975 → Aug 11, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US4173898A System for nondestructive, ultrasonic testing of test objects Physics 27 Expired
US4173897A Method of adjusting ultrasonic test systems Physics 21 Expired
US4065960A Method and apparatus for monitoring the operation of ultrasonic testing of tubes and bars Physics 21 Expired
US4240281A Automatic self-checking of test equipment Physics 21 Expired
US4058000A Ultrasonic immersion type testing Physics 15 Expired
US4147065A Ultrasonic testing Physics 14 Expired
US4164150A System for inspecting tubes or pipes by means for ultrasonics Physics 13 Expired
US4305297A Ultrasonic testing of weld seams of pipes for detecting transversely extending defects Physics 12 Expired
US4170143A Recognizing ultrasonic response signals during testing of structural materials Physics 11 Expired
US4206511A Locating a welding seam Physics 9 Expired
US4131026A Ultrasonic testing of seams Physics 8 Expired
US4106326A Initialization and preparation of on-production-line ultrasonic test equipment Physics 8 Expired
US4238963A Test head for ultrasonic testing of structural material Physics 5 Expired
US4162636A Mount for ultrasonic test head Physics 4 Expired
US4311905A Film strip positioning for X-ray testing of pipes Physics 2 Expired
US4182154A Initializing ultrasonic test equipment with a particular reference element Physics 2 Expired
US4131027A Apparatus for ultrasonic inspection of the welding seam of large pipes Physics 2 Expired
US5605206A Platform for storage or removal of motor vehicles in parking garages Fixed Constructions 0 Expired
US4213552A Conveyor belt for filmstrip positioning Physics 0 Expired

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