Patents by Inventor Lilei Cui

Lilei Cui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250337742
    Abstract: Access to secured items in a computing system is requested instead of being persistent. Access requests may be granted on a just-in-time basis. Anomalous access requests are detected using machine learning models based on historic patterns. Models utilizing conditional probability or collaborative filtering also facilitate the creation of human-understandable explanations of threat assessments. Individual machine learning models are based on historic data of users, peers, cohorts, services, or resources. Models may be weighted, and then aggregated in a subsystem to produce an access request risk score. Scoring principles and conditions utilized in the scoring subsystem may include probabilities, distribution entropies, and data item counts. A feedback loop allows incremental refinement of the subsystem. Anomalous requests that would be automatically approved under a policy may instead face human review, and low threat requests that would have been delayed by human review may instead be approved automatically.
    Type: Application
    Filed: July 2, 2025
    Publication date: October 30, 2025
    Inventors: Christopher Michael JEFFORDS, Srikanth BOLISETTY, Ayala MILLER, Pavan Gopal BANDLA, Ramin Leonard HALVIATTI, LiLei CUI, James Matthew ATKINS, Jessica Michelle SATNICK, Ravi Kumar LINGAMALLU, Ahmed AWAD-IDRIS, Amritaputra BHATTACHARYA, Sunil PAI, Kaymie Sato-Hayashi-Kagawa SHIOZAWA, Noah BERGMAN
  • Patent number: 12381876
    Abstract: Access to secured items in a computing system is requested instead of being persistent. Access requests may be granted on a just-in-time basis. Anomalous access requests are detected using machine learning models based on historic patterns. Models utilizing conditional probability or collaborative filtering also facilitate the creation of human-understandable explanations of threat assessments. Individual machine learning models are based on historic data of users, peers, cohorts, services, or resources. Models may be weighted, and then aggregated in a subsystem to produce an access request risk score. Scoring principles and conditions utilized in the scoring subsystem may include probabilities, distribution entropies, and data item counts. A feedback loop allows incremental refinement of the subsystem. Anomalous requests that would be automatically approved under a policy may instead face human review, and low threat requests that would have been delayed by human review may instead be approved automatically.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: August 5, 2025
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Christopher Michael Jeffords, Srikanth Bolisetty, Ayala Miller, Pavan Gopal Bandla, Ramin Leonard Halviatti, LiLei Cui, James Matthew Atkins, Jessica Michelle Satnick, Ravi Kumar Lingamallu, Ahmed Awad-Idris, Amritaputra Bhattacharya, Sunil Pai, Kaymie Sato-Hayashi-Kagawa Shiozawa, Noah Bergman
  • Publication number: 20220345457
    Abstract: Access to secured items in a computing system is requested instead of being persistent. Access requests may be granted on a just-in-time basis. Anomalous access requests are detected using machine learning models based on historic patterns. Models utilizing conditional probability or collaborative filtering also facilitate the creation of human-understandable explanations of threat assessments. Individual machine learning models are based on historic data of users, peers, cohorts, services, or resources. Models may be weighted, and then aggregated in a subsystem to produce an access request risk score. Scoring principles and conditions utilized in the scoring subsystem may include probabilities, distribution entropies, and data item counts. A feedback loop allows incremental refinement of the subsystem. Anomalous requests that would be automatically approved under a policy may instead face human review, and low threat requests that would have been delayed by human review may instead be approved automatically.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Christopher Michael JEFFORDS, Srikanth BOLISETTY, Ayala MILLER, Pavan Gopal BANDLA, Ramin Leonard HALVIATTI, LiLei CUI, James Matthew ATKINS, Jessica Michelle SATNICK, Ravi Kumar LINGAMALLU, Ahmed AWAD-IDRIS, Amritaputra BHATTACHARYA, Sunil PAI, Kaymie Sato-Hayashi-Kagawa SHIOZAWA, Noah BERGMAN
  • Patent number: 11233794
    Abstract: Methods, systems, and computer storage media for providing escorted-access management based on an escort-admin session engine are provided. The escort-admin session engine approves an external administrator's access to a resource instance based on a service team policy, while approving an escort operator to escort the external administrator in an escort-admin session that provides access to the resource. In operation, an external administrator's request for access to a resource is evaluated based on the service team policy that is managed by a service team. The request is approved with access rights to the resource identified in the policy. An escort operator is identified for the external administrator. The escort operator is approved to escort the external administrator for access to the resource during an escort-admin session. The escort-admin session includes an escort operator context referring to the escort operator having access rights based on the access rights approved using the policy.
    Type: Grant
    Filed: June 30, 2019
    Date of Patent: January 25, 2022
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Chetan S. Shankar, LiLei Cui, Sandeep Kalarickal S, Thomas Charles Knudson, Pavan Gopal Bandla, Pradeep Ayyappan Nair, Aaron Keith Rosenfeld, Tyler S. Wiegers, Sudharshan Reddy Bommu, Margus Janese, Mario Mett, Chi Zhou
  • Patent number: 10965612
    Abstract: Methods, systems, and computer storage media for providing access to computing environments are provided. Based on a resource-ownership policy manager (i.e., a self-service engine and a runtime policy evaluation engine) that provides resource-ownership policy operations executed to apply a resource owner's policies only on resource owned by the resource owner. In operation, at runtime, a first resource instance is identified and an entity is determined to be the resource owner of the first policy and first resource instance. The first policy is applied to the first resource instance because the entity owns both the first policy and the first resource instance. A second resource instance is identified and the entity is determined not to be the resource owner of the second resource instance. A second resource policy of the entity is not applied to the second resource instance because the entity is not the owner of the second resource instance.
    Type: Grant
    Filed: June 30, 2019
    Date of Patent: March 30, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chetan Shankar, LiLei Cui, Christopher Michael Jeffords, Sandeep Kalarickal
  • Patent number: 10560463
    Abstract: Techniques allow DevOps personnel to perform incident management for cloud computing environments in a manner that maintains control over restricted data and the data plane. The DevOps personnel do not have access to restricted data or the ability to modify the cloud computing environment to gain access to restricted data. The incident management techniques include executing automatic operations to resolve an incident and allowing DevOps personnel to execute remote operations without providing the DevOps personnel access. A further incident management technique provides DevOps personnel with just-in-time (JIT) access that is limited to a certain level or type of access and limited in time. Still another technique for incident management is using an escort model, in which an escort session between operating personnel and DevOps personnel is established and connected to the cloud computing environment to allow the DevOps personnel access to the production environment while escorted by the operating personnel.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: February 11, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Somak Chattopadhyay, Thomas Knudson, Chetan Shankar, Maisem Ali, Lilei Cui, Sandeep Kalarickal, Pradeep Ayyappan Nair, Tom Keane, Siddhartha Pasumarthy, Shont Miller, Lu Jin, Qin Zhou, Maria Black, Elaine Lu, Damien Gallot, Christopher Geisbush, David Sauntry, Peter Miller
  • Publication number: 20170134392
    Abstract: Techniques allow DevOps personnel to perform incident management for cloud computing environments in a manner that maintains control over restricted data and the data plane. The DevOps personnel do not have access to restricted data or the ability to modify the cloud computing environment to gain access to restricted data. The incident management techniques include executing automatic operations to resolve an incident and allowing DevOps personnel to execute remote operations without providing the DevOps personnel access. A further incident management technique provides DevOps personnel with just-in-time (JIT) access that is limited to a certain level or type of access and limited in time. Still another technique for incident management is using an escort model, in which an escort session between operating personnel and DevOps personnel is established and connected to the cloud computing environment to allow the DevOps personnel access to the production environment while escorted by the operating personnel.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 11, 2017
    Inventors: Somak Chattopadhyay, Thomas Knudson, Chetan Shankar, Maisem Ali, Lilei Cui, Sandeep Kalarickal, Pradeep Ayyapan Nair, Tom Keane, Siddhartha Pasumarthy, Shont Miller, Lu Jin, Qin Zhou, Maria Black, Elaine Lu, Damien Gallot, Christopher Geisbush, David Sauntry, Peter Miller