PATENT HOLDINGS LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10C WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID 110
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5286349 Apparatus for reclaiming useful oil products from waste oilJun 10, 91Feb 15, 94[C10G]
5271808 Apparatus from waste oil for reclaiming a useful oil productJun 10, 91Dec 21, 93[C10C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6805062 Apparatus and method for reclaiming useful oil products from waste oil including hydrogen injectionExpiredJan 06, 03Oct 19, 04[C10M]
6440298 Method of reclaiming waste oilExpiredOct 11, 00Aug 27, 02[C10G]
5795462 Apparatus and method for reclaiming useful oil products from waste oilExpiredMar 28, 97Aug 18, 98[C10M]

Top Inventors for This Owner

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