[Patentcenter] Images from eGrant and downloaded patent have different pixelations

[Gerry J. Elman]

For drawings, use of the  PDF format by the USPTO  doesn't assure that they'll be the same, as between the eGrant document and the "printed"  version of the patent downloadable from Patent Center.   I've found that the eGrant document for a patent issued January 30th seems to present the Figures with relatively smooth grayscale areas, whereas the PDF version of the same "printed" patent that I  downloaded from Patent Center (here, "PC Print") shows the same Figures with significant pixelation.  Attached copies of the eGrant document for US patent 11885786 and the PC Print version of it  display a difference that surprised me.  Both the eGrant document and the PC Print were generated from the SCORE version of the Figures, with document code DRW.NONBW.  The eGrant file doesn't have much in the way of
artefacts of pixelation, whereas the PC Print  version does, despite being generated from the same drawings file in the IFW.  I am glad that I'd taken the precaution to upload a file that I'd characterized as "not" b/w line drawings,  so that they were saved in SCORE, and now I find it incorporated into the official  eGrant document.  Nevertheless, curiously the PC Print file retrieved from Patent Center shows noticeable pixelation, different from the official eGrant.

I also downloaded a copy of the patent from the site Free Patents Online.  The images in that version seem to be a bit more pixelated than those from the USPTO Patent Center.

Notice the significant differences in file size.  The eGrant is 5 MB.  The PC Print Patent Center is only 2 MB.  (Of course, it omits the colored cover pages included in what the USPTO now dubs the "ceremonial copy" of the patent, and apparently it uses the version of the Figures from SCORE in the IFW that have been smooshed by the USPTO's procrustean bed algorithm to render as b.w line drawings.)  And the download from Free Patents Online has been compressed down to only 462 KB.

Something to keep in mind.

-Gerry
Gerry J. Elman, J.D.
Elman IP
Intellectual Property Matters
6117 St. James Place, Denton, TX 76210
610-892-9942   www.elman.com<http://www.elman.com/>

.

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