A. HAK INDUSTRIAL SERVICES B.V.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
G01G WEIGHING 127
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 179

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6978690 Apparatus for the internal inspection of pipes and tubes and the likeMar 10, 00Dec 27, 05[G01G]
6929142 Removable hatch cover for an internal floating roof manwayJul 29, 02Aug 16, 05[B65D]
6295872 Ultrasonic measuring instrumentFeb 23, 00Oct 02, 01[G01N, G01V]
5627800 Method and apparatus for determining position of a moving object in a tankJan 28, 94May 06, 97[G01S]
5205174 Scavenger submersible visual and acoustical tank inspection system and methodMay 24, 91Apr 27, 93[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7017432 Hydraulic and electric umbilical connection for an inspection vehicle for inspecting a liquid-filled tankExpiredNov 12, 04Mar 28, 06[G01M]
6882412 Method for inspecting an internal floating roof in a liquid-containing storage tankExpiredAug 20, 02Apr 19, 05[G01N]
6838614 Hydraulic and electric umbilical connection for an inspection vehicle for inspecting a liquid-filled tankExpiredSep 10, 02Jan 04, 05[H01B, E21B]

Top Inventors for This Owner

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