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|---|---|---|---|---|
| Rank | Domain | PR | Backlinks | Pages in URL |
| 1 | patft.uspto.gov | |||
| 3 | google.com | 1- | 423000000 | 36800000 |
| 5 | uspto.gov | 8 | 676000 | 523000 |
| 7 | us-patent-search.com | 6 | 124 | 13 |
| 8 | ibm.com | 8 | 3770000 | 4020000 |
| 9 | pat2pdf.org | |||
| 10 | delphion.com | 8 | 28100 | 2730 |
| 12 | freepatentsonline.com | 7 | 91300 | 12500000 |
| 14 | osulibrary.oregonstate.edu | |||
| 15 | scilib.ucsd.edu | |||
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|---|---|---|---|---|
| Rank | Domain | PR | Backlinks | Pages in URL |
| 1 | us-patent-search.com | 6 | 124 | 13 |
| 2 | uspto.gov | 8 | 676000 | 523000 |
| 3 | jam727.com | - | ||
| 4 | freepatentsonline.com | 7 | 91300 | 12500000 |
| 5 | pat2pdf.org | |||
| 6 | patentalert.com | |||
| 8 | infoed.org | |||
| 9 | google.com | 1- | 423000000 | 36800000 |
| 10 | patentlens.net | |||
| 11 | irossco.com | |||
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||||
|---|---|---|---|---|
| Rank | Domain | PR | Backlinks | Pages in URL |
| 1 | uspto.gov | 8 | 676000 | 523000 |
| 2 | freepatentsonline.com | 7 | 91300 | 12500000 |
| 3 | google.com | 1- | 423000000 | 36800000 |
| 6 | delphion.com | 8 | 28100 | 2730 |
| 8 | irossco.com | |||
| 9 | boardgamegeek.com | 6 | 258000 | 3740000 |
| 10 | getthepatent.com | 6 | 266 | 80 |
| 13 | corporate.local.com | 5 | 104000 | 597 |
| 14 | qwebprd.questel.fr | |||
| 15 | en.wikipedia.org | 8 | 61800000 | 3750000 |
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