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 4):
The method of  claim 2 , further comprising removing, in response to determining that the version of the file is expired, an identifier for the version of the file from a global expiration table, the global expiration table containing associations between backup blocks and unexpired file versions and virtual machine backups, wherein the global expiration table is used in the 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.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 94.0
- Lexical Diversity: 2.57895
- Patent Class: 711.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15297281', '15885934', '15297266', '15195840', '15197297']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5147324754957238
- 35 USC 102 Novelty (BERT): 0.52298466606378
- Combined Prediction Score: 0.5155576945525294
- Mean Citation Score: 290.69534
- Max Citation Score: 331.54672
- Similarity Product: 261.95143993058207

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