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Expired Canadian patentCanada

Processing of oriented patterns

CA 1265249 C · Owner: Witkin, Andrew P. · Inventors: Witkin, Andrew P.; Kass, Michael Henry

CIPO record

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Abstract From the Canadian patent

Disclosed are a method and a system for processing patterns such as oriented patterns, to derive constituents which are more useful than the original patterns. For example an oriented, pattern such as a seismic section can be decomposed into a flow field, which is an estimate of a moving accretion boundary which formed the subsurface layers, and a residual pattern which is an, estimate of layer properties such as acoustic velocity. Similarly, an oriented pattern such as a chart displaying changes in borehole resistivity with depth along its vertical direction and changes in resistivity with angle around the borehole along its horizontal dimension, can be decomposed into a flow field and a …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 15, 1986
GrantedJanuary 30, 1990
Term endedJanuary 30, 2007
Patent numberCA 1265249 C
Classification (IPC)G06T7/00 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedAug 15, 1986Patent grantedJan 30, 1990Term endedJan 30, 2007

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.