Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MR

Mark E. Risher — 11 Patents

YHYahoo Holdings: 7 patents #182 of 2,500Top 8%
Google: 4 patents #6,467 of 22,993Top 30%
San Francisco, CA: #4,061 of 26,999 inventorsTop 20%
California: #56,011 of 386,348 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Mark E. Risher has been granted 11 US patents while listed as an inventor at Yahoo Holdings. The first was granted in 2011 and the most recent in June 2016. Mark E. Risher ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Mark E. Risher in San Francisco, CA, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9369483 Detection and prevention of unwanted content on cloud-hosted services Vishwanath Tumkur Ramarao, Naveen Jamal, Youngnam Maeng, Cory O'Connor, Tejaswi Nadahalli +2 more 2016-06-14 $20,941,000
9225741 Detection and prevention of unwanted content on cloud-hosted services Vishwanath Tumkur Ramarao, Naveen Jamal, Youngnam Maeng, Cory O'Connor, Tejaswi Nadahalli +2 more 2015-12-29 $16,125,000
9043398 Detection and prevention of unwanted content on cloud-hosted services Vishwanath Tumkur Ramarao, Naveen Jamal, Youngnam Maeng, Cory O'Connor, Tejaswi Nadahalli +2 more 2015-05-26 $12,368,000
8949174 Detection and prevention of unwanted content on cloud-hosted services Vishwanath Tumkur Ramarao, Naveen Jamal, Youngnam Maeng, Cory O'Connor, Tejaswi Nadahalli +2 more 2015-02-03 $8,180,000
8892661 Detecting spam from a bulk registered e-mail account Vishwanath Tumkur Ramarao, Xiaopeng Xi 2014-11-18 $61,918,000
8868663 Detection of outbound sending of spam Bhasker Hariharan, Naveen Jamal, Anirban Kundu, Vishwanath Tumkur Ramarao, Xiaopeng Xi +1 more 2014-10-21 $31,158,000
8826450 Detecting bulk fraudulent registration of email accounts Bhasker Hariharan, Naveen Jamal, Anirban Kundu, Vishwanath Tumkur Ramarao, Xiaopeng Xi +1 more 2014-09-02 $35,937,000
8463827 Mining global email folders for identifying auto-folder tags Vishwanath Tumkur Ramarao, Andrei Broder, Idan Szpektor, Edo Liberty, Yehuda Koren +1 more 2013-06-11 $45,058,000
8381262 Blocking of spoofed E-mail Mark Delany, Anirban Kundu, Miles Libbey, Masumi Taketomi 2013-02-19 $13,540,000
8364766 Spam filtering based on statistics and token frequency modeling Lei Zheng, Sharat Narayan, Stanley Ke Wei, Vishwanath Tumkur Ramarao, Anirban Kundu 2013-01-29 $10,588,000
7950047 Reporting on spoofed e-mail Mark Delany, Anirban Kundu, Miles Libbey, Masumi Taketomi 2011-05-24 $13,083,000