Shared transport system and service network

Patent No. US7840427 (titled "Shared transport system and service network") on Feb 12, 2008. The application was issued on Nov 23, 2010.

What is this patent about?

’427 is related to the field of ground transportation logistics and real-time resource allocation. It specifically addresses the inefficiencies of underutilized private vehicle capacity, such as empty seats during daily commutes, by integrating these personal vehicles into a dynamic, ad-hoc transit network that complements existing public infrastructure.

The underlying idea behind ’427 is to transform a chaotic stream of individual vehicle movements into a structured, searchable transit network by abstracting geographic routes into discrete nodes. Rather than matching raw GPS coordinates or specific street addresses, the system maps vehicle trajectories onto a predefined grid of pick-up and drop-off points, effectively treating every participating private car as a temporary bus or train with a predictable set of stops.

The claims of ’427 focus on a computer-implemented method and network for matching transport supply and demand through a specific node-based abstraction process. The independent claims require establishing an electronic registry of vehicle capacity and user demand, then calculating the intersections between a vehicle's intended journey and a network of nodes to represent that journey as a simplified set of pick-up and drop-off points for the matching engine.

In practice, the invention functions by monitoring the real-time location and spare capacity of registered vehicles and comparing them against user requests. A key implementation feature is the use of stochastic modeling to predict future capacity based on historical patterns, allowing the system to provide users with high-confidence arrival estimates even before a specific driver has logged onto the network for their morning commute.

This approach differs from prior carpooling solutions by moving away from rigid, pre-arranged schedules between known associates. By utilizing continuous coordinated proximity—verifying the ride via the simultaneous movement of the driver’s and rider’s mobile devices—the system creates a secure, automated, and high-trust environment that allows for spontaneous, anonymous, and verifiable peer-to-peer transit transactions.

How does this patent fit in bigger picture?

Technical Landscape

In the late 2000s when ’427 was filed, personal transit was characterized by a sharp divide between fixed-route public infrastructure and underutilized private vehicles, at a time when ridesharing was typically implemented using static, pre-arranged carpooling groups. While GPS and mobile communication devices were becoming more common, systems commonly relied on manual coordination or central dispatching rather than real-time, ad-hoc matching of excess capacity. Technical constraints in data processing and network latency made the dynamic integration of private vehicles into a broader, multi-modal transit model non-trivial, often leaving drivers and passengers with significant information gaps regarding route availability and participant trust.

Prosecution Position

The disclosed invention represents a technical advancement through the architectural integration of private transport capacity into a dynamic, real-time network that functions as a feeder for mass transit systems. By utilizing a stochastic model based on historical and real-time journey data—including start/end points and spare capacity—the system enables the automatic generation of schematic availability maps and transfer instructions, overcoming the technical constraint of uncertainty in ad-hoc transit. Furthermore, the implementation of a proxy messaging system and automated security verification protocols, such as out-of-route alerts and identity matching, enables a trusted environment for casual users that was previously unattainable in decentralized transport models.

Claims

This patent contains 17 claims, with claims 1 and 15 serving as the independent claims. The independent claims focus on a ground transportation network and method that utilizes a computer network to match spare vehicle capacity with user demand by abstracting geographic journeys into a set of nodes representing pick-up and drop-off points. The dependent claims serve to further specify technical implementations such as the use of GPS data, near-field communication for journey tracking, real-time traffic monitoring, stochastic modeling of journeys, and the generation of user displays like departure boards.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Abstracting a geographic representation
(Claim 1, Claim 15)
The system provides these transfer instructions to the transport user, and, importantly, providing graphical presentation of the reach of the transport network. This involves calculating places where a predetermined journey of a transport vehicle intersects nodes and representing said predetermined journey in the format of a set of said intersected nodes.The process of converting a continuous physical vehicle route into a simplified digital format by identifying which specific pre-defined nodes the vehicle's path intersects.
Electronic registry of capacity
(Claim 1, Claim 15)
The invention provides a network system that matches the supply and demand of transportation services by incorporating unused transportation capacity (i.e., empty seats) with a real-time allocation and matching service. The system uses the speed, journey start and end points, intermediate destinations, spare vehicle capacity, and vehicle type characteristics of registered transport capacity to automatically generate specific information about journey capabilities.A digital database or data structure within a computer network that stores and updates real-time information regarding available seats or space in transport vehicles, including their current or projected locations.
Electronic registry of demand
(Claim 1, Claim 15)
It is another object of the invention to match a need to move individuals and/or goods from one geographic point to another geographic point (“Transport Demand”) with an unrelated driver's unused transportation capacity. The network system incorporates telecommunications and computing technology to match the supply of excess transport capacity with the demand for personal transport.A digital database or data structure that records and tracks the specific transportation requirements of users, including their desired origin, destination, and timing.
Match engine
(Claim 1, Claim 15)
The network system matches the supply and demand of transportation services by incorporating unused transportation capacity with a real-time allocation and matching service. Because the nature of this system is extremely ad-hoc, the best capacity for the journey is the capacity flowing by the transport user as they need it, determined by the computational network model.A computational component or algorithm that compares data from the capacity registry against the demand registry to identify compatible transport opportunities between nodes.
Network of nodes
(Claim 1, Claim 15)
In areas where a critical mass of transport providers can be established, this system aims to provide pick-up and drop-off service to within a few hundred yards to the majority of locations in the covered area. These nodes serve as the basis for schematic and geographic maps indicating coverage areas and typical availability.A defined set of discrete geographic coordinates or logical points within the computer system that represent specific locations designated for picking up or dropping off passengers or goods.
Spare transport capacity
(Claim 1, Claim 15)
The invention provides a network system that matches the supply and demand of transportation services by incorporating unused transportation capacity (i.e., empty seats). This capacity is often disused because of an occasional need for greater capacity causing consumers to buy excess transportation capacity or variations in schedule. The system uses vehicle type characteristics and spare vehicle capacity of registered transport capacity to generate information about journey capabilities.The available, unused passenger seats or cargo space within a private or corporate vehicle that can be allocated to a third-party user for a fee or incentive.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
2:25-cv-00029Jan 14, 2025Carma Technology, Corp. V. Uber Technologies Inc

Patent Family

Patent Family

File Wrapper

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Get instant alerts for new documents

US7840427

Application Number
US12069656A
Filing Date
Feb 12, 2008
Publication Date
Nov 23, 2010
External Links
Slate, USPTO , Google Patents