Inventor

PERUMAL RAJA P

US3 patents

⚠️ This page may combine multiple inventors who share the name “PERUMAL RAJA P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MICROSOFT CORP

2 patents

US7533419B2May 12, 2009

Human interactive proof service

MICROSOFT CORP21 citations89

US8984624B2Mar 17, 2015

Resource access based on multiple scope levels

MICROSOFT CORP1 citations49

PERUMAL RAJA P

1 patent

US8464319B2Jun 11, 2013

Resource access based on multiple scope levels

PERUMAL RAJA P2 citations54