PATENT CLAIM ANALYSIS

Application Number: 16014238
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["711", "162000"]

Abstract:
A backup system retains a certain number of file versions in backups of a virtual machine running on a host computing system. Files are identified that have changed on the virtual machine since storing a backup of the virtual machine on a backup server. Host blocks on that are associated with each of the changed files are determined. Backup blocks associated with each of the host blocks are determined. The changed files and associated backup blocks are merged with previous file version information. It is determined that a version of a file has become expired, the version of the file associated with a backup block. The backup block is deleted in response to determining that the backup block is not associated with any unexpired file versions and the backup block is not associated with any unexpired virtual machine backups.

Claim (Index 10):
The computer system of  claim 9 , wherein the backups of the virtual machine backup are backed up on a block level in storage on the backup server, wherein the backup is managed by a proxy server, wherein the virtual machine maintains a local history table tracking changes to filesystem objects since storing the backup, wherein the identifying files that have change is based on the local history table, wherein in a global history table on the backup server maps history of filesystem objects on the virtual machine to backup blocks for file level search and restore of block level backups, and wherein the file version backup table and the global expiration table are stored on the backup server.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 94.0
- Lexical Diversity: 2.57895
- Patent Class: 711.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15297281', '15885934', '15297266', '15195840', '15197297']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5443260753024208
- 35 USC 102 Novelty (BERT): 0.5265858140751769
- Combined Prediction Score: 0.5425520491796965
- Mean Citation Score: 290.69534
- Max Citation Score: 331.54672
- Similarity Product: 248.0788476832772

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test