# US 12,001,470 B2 · Document elimination for compact and secure storage and management thereof

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- Number: US 12,001,470 B2
- Document ID: US12001470B2
- Status: Granted
- Kind: B2
- Application number: 17/986,757
- Filed: 2022-11-14
- Published: 2023-03-09
- Granted: 2024-06-04
- Earliest claimed: 2017-09-15
- Assignees: Dg IP LLC
- Applicants: Dg IP LLC
- Inventors: Theodore Daniel Culhane; Daniel James Culhane; Brendan Haskins
- Web page: https://patentgrep.com/patent/US12001470B2

## CPC

- G06F 16/353: into predefined classes
- G06F 40/205: Parsing
- G06F 16/1794: {Details of file format conversion}
- G06F 16/316: {Indexing structures}
- G06F 16/38: Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06Q 10/10: Office automation; Time management
- G06Q 50/18: Legal services
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

Documents, such as those that may or will be the subject of a litigation, may be managed by automatically determining that a document, such as an email or other communication, is privileged or producible such that superfluous documents may be removed to improve data storage and reduce the burden on storage, processing, and communication resources. Additionally, documents such as emails may comprise attached or embedded documents (e.g., attachments) which may be similarly or independently classified from their associated email. After determining privilege, such as via metadata associated with a sender/receiver of an email, similarly categorized documents may be grouped for presentation and/or storage. The documents may be indexed, such as by entries within a production log, to further facilitate accurate production and management of non-privileged documents, as well as, the exclusion of privileged documents. Documents not required for production may be indexed and/or purged from storage.

## Claims

### Claim 1

A method for document compaction, comprising:
receiving a set of electronic documents, wherein one or more electronic documents includes an attached electronic document;
extracting and storing metadata associated with each electronic document of the set of electronic documents including the attached electronic document;
parsing the metadata to extract information identifying a sender and a receiver;
reconstructing and converting each electronic document of the set of electronic documents into a first format, wherein the first format is immutable, with respect to contents of each electronic document of the set of electronic documents;
setting a file name for each electronic document of the set of electronic documents to indicate an order in an ordered relationship (a) between each electronic document of the set of electronic documents and (b) between one or more electronic documents of the set of electronic documents and the attached electronic document and wherein the order comprises a number ordering of the set of electronic documents;
classifying each electronic document of the set of electronic documents as based on the extracted and stored metadata;
grouping similar electronic documents in the first format based on a classification; and
providing a grouping of similar electronic documents, together with one or more document logs identifying each document in the grouping of similar electronic documents, to a user.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
storing the grouping of similar electronic documents identified as producible, and absent members of the set of electronic documents identified as privileged, in a data storage.

### Claim 3 (depends on 1)

The method of claim 1, wherein:
the first format is immutable, with respect to the contents of each electronic document of the set of electronic documents and annotatable without changing the contents thereof: and
reconstructing and converting further comprises annotating each electronic document of the set of electronic documents comprising providing Bates numbering on each document page of each electronic document of the electronic documents.

### Claim 4 (depends on 1)

The method of claim 1, wherein: the first format is immutable, with respect to the contents of each electronic document of the set of electronic documents and annotatable without changing the contents thereof; and reconstructing and converting further comprises annotating each electronic document of the set of electronic documents comprising providing a confidentiality indicator on each document page of each electronic document of the electronic documents identified as confidential.

### Claim 5 (depends on 1)

The method of claim 1, wherein:
the extracted and stored metadata comprises a role associated with one of the sender or the recipient of one of the one or more electronic documents, when the one of the one or more electronic documents is a communication; and
the communication is at least one of a group of communication types comprising an email, a text message, a multimedia message, and a social media message.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving a user input indicating a reclassification and a target document; and
reclassifying the target document, comprising at least one electronic document of the set of electronic documents as privileged or producible based on the user input.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
reconstructing and converting each electronic document of the set of electronic documents into the first format, wherein the reconstruction and converting maintains the ordering between the one or more electronic documents and the attached electronic document identified as producible and not identified as privileged.

### Claim 8 (depends on 1)

The method of claim 1, wherein providing the grouping of similar electronic documents to the user further comprises encrypting the grouping of similar electronic documents.

### Claim 9

A method for document management, comprising:
receiving an electronic document;
extracting and storing metadata associated with the electronic document;
reconstructing and converting the electronic document into a first format wherein the first format is immutable, with respect to contents of the electronic document;
setting a file name for the electronic document to indicate an order in an ordered relationship (a) between the electronic document and a set of electronic documents and (b) between the electronic document and an attached electronic document, wherein the attached electronic document is an attachment to the electronic document and wherein the order comprises a date ordering of the set of electronic documents;
classifying the electronic document based on the extracted and stored metadata; and
providing the classified electronic document, together with a document log identifying the electronic document, to a user.

### Claim 10 (depends on 9)

The method of claim 9, wherein:
receiving of the electronic document further comprises receiving the set of electronic documents;
extracting and storing of the metadata associated with the electronic document further comprises extracting and storing metadata associated with each electronic document of the set of electronic documents;
reconstructing and converting of the electronic document into the first format comprises reconstructing and converting each electronic document of the set of electronic documents into the first format;
classifying of the electronic document as one of privileged or producible based on the extracted and stored metadata comprises classifying each electronic document of the set of electronic documents as privileged or producible based on the extracted and stored metadata;
grouping similar electronic documents in the first format based on a privilege and producibility classification; and
providing of the electronic document, together with document log identifying the electronic document, to a user comprises providing the grouping of similar electronic documents, together with one or more document logs identifying each document in the grouping of similar electronic documents, to the user.

### Claim 11 (depends on 9)

The method of claim 9, further comprising storing the grouping of similar electronic documents identified as producible, and absent members of the set of electronic documents identified as privileged, in a data storage.

### Claim 12 (depends on 9)

The method of claim 9, wherein reconstructing and converting each electronic document of the set of electronic documents into the first format, further comprises converting the electronic documents, having a plurality of file types, into a single file type.

### Claim 13

A system for document management, comprising:
a processor with a communication interface; and
a data repository accessible, via the communication interface, to the processor;
wherein the processor:
receives an electronic document;
extracts and stores metadata associated with the electronic document;
reconstructs and converts the electronic document into a first format wherein the first format is immutable, with respect to contents of each electronic document of a set of electronic documents;
sets a file name for each electronic document of the set of electronic documents to indicate an order in an ordered relationship (a) between each electronic document of the set of electronic documents and (b) between a plurality of electronic documents of the set of electronic documents and an attached electronic document and wherein the order comprises one or more of a number ordering of the set of electronic documents or a date order of each electronic document of the set of electronic documents;
classifies the electronic document based on previously extracted and stored metadata; and
provides the electronic document, together with a document log identifying the electronic document, to a display device for viewing by a user.

### Claim 14 (depends on 13)

The system of claim 13, wherein the processor:
receives the electronic document comprising receiving a set of electronic documents;
extracts and stores metadata associated with each electronic document of the set of electronic documents;
reconstructs and converts each electronic document of the set of electronic documents into the first format;
classifies each electronic document of the set of electronic documents as privileged or producible based on the extracted and stored metadata;
groups similar electronic documents in the first format based on the privilege and producibility classification; and
provides a grouping of documents, together with one or more document logs identifying each document in the grouping of documents, to the display device for viewing by the user.

### Claim 15 (depends on 14)

The system of claim 14, wherein reconstructing and converting each electronic document of the set of electronic documents into a first format, further comprises converting the electronic documents, having a plurality of file types, into a single file type.

### Claim 16 (depends on 15)

The system of claim 15, wherein the single file type is a portable document format (PDF).

### Claim 17 (depends on 13)

The system of claim 13, wherein the extracted and stored metadata comprises a role associated with one of a sender or a recipient of one of the plurality of electronic documents, when one of the plurality of electronic documents is a communication.

### Claim 18 (depends on 17)

The system of claim 17, wherein the communication is at least one of a group of communication types comprising an email, text message, multimedia message, and social media message.

### Claim 19 (depends on 13)

The system of claim 13, further comprising:
the processor further receives a user input indicating a reclassification and a target document; and
the processor further reclassifies the target document, comprising at least one electronic document of the set of electronic documents as privileged or producible based on the user input.

### Claim 20 (depends on 13)

The system of claim 13, further comprising:
the processor further reconstructs and converts each electronic document of the set of electronic documents into the first format, wherein the reconstruction and converting maintain an ordering between a plurality of electronic documents and the attached electronic document identified as producible and not identified as privileged.