# How Handheld Devices Organize Recently Used Files and Contacts

> A 2000-era Microsoft patent for showing a 'Recent' category on handheld devices, allowing users to interact with recent items exactly like they would with any other file.

- **Patent:** US 6901559
- **Original title:** Method and apparatus for providing recent categories on a hand-held device
- **Owner:** Microsoft Corp
- **Granted:** 2005
- **Status:** Public domain (expired)
- **Times cited:** 73
- **Field:** consumer_electronics, software

## What it does

The patent describes a way to organize data on early handheld devices by creating a 'Recently Accessed' category alongside standard folders. When a user selects this category, the device displays a list of the most recently used contacts or tasks. The core innovation is that these items are not just shortcuts or links; they are fully functional database entries. This means a user can edit, delete, or modify an item while viewing it in the 'Recent' list, and those changes are applied directly to the original record in the database, just as if the user had accessed it through a standard category folder.

## What it does NOT cover

- Does not cover predictive or AI-based suggestions that guess what a user might want next.
- Does not cover displaying 'Recent' items as read-only shortcuts or static links.
- Does not cover cloud-synced history that tracks usage across multiple different devices.
- Does not cover voice-activated retrieval of recent files or contacts.

## The clever bit

The invention treats the 'Recent' list as a dynamic view of the primary database rather than a separate, static log file, ensuring that any action taken on a 'recent' item is immediately reflected in the master record.

## Real-world examples

1. Windows Mobile 'Recent' contacts lists
2. Early PDA task management interfaces
3. Modern mobile file explorer 'Recent' tabs

## Why it matters

This patent addressed the limitations of early mobile devices like the Pocket PC, which had very small screens and limited input methods. By treating 'Recent' items as live, editable database objects rather than temporary shortcuts, it made mobile navigation significantly faster and more intuitive for users managing contacts and tasks on the go.

## Frequently asked questions

### What does How Handheld Devices Organize Recently Used Files and Contacts cover?

A 2000-era Microsoft patent for showing a 'Recent' category on handheld devices, allowing users to interact with recent items exactly like they would with any other file.

### Who owns patent US 6901559?

Microsoft Corp owns this patent, granted in 2005.

### When does this patent expire?

This patent has expired and is now in the public domain — anyone can use the invention freely.

### What is patent US 6901559 cited by?

This patent has been cited by 73 later patents that build on its ideas.

### What problem does this patent solve?

This patent addressed the limitations of early mobile devices like the Pocket PC, which had very small screens and limited input methods. By treating 'Recent' items as live, editable database objects rather than temporary shortcuts, it made mobile navigation significantly faster and more intuitive for users managing contacts and tasks on the go.

### What does this patent NOT cover?

Does not cover predictive or AI-based suggestions that guess what a user might want next.

**Full plain-English explainer:** https://patentbrief.org/patent/us/6901559/microsoft-office-ribbon-ui

**Original patent:** https://patents.google.com/patent/US6901559

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_Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._