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Assignee: Aspen Technology Inc.


Location: Cambridge, MA
No. of patents: 7

NumberTitleIssue Date
7448046Computer system for providing a collaborative workflow environment
Currently lacking are effective and accurate tools to help petroleum traders and logistics personnel to make better decisions, collaborate in real-time and negotiate deals in a private and secure environment. The present invention addresses this and other needs in t...
11/04/2008
7367018System and method for organizing and sharing of process plant design and operations data
Computer method and apparatus for managing process and plant engineering data for chemical or other engineering processes across applications. The method and apparatus include a respective class view for each of multiple software applications, a composite class view...
04/29/2008
7251695Computer network communication method and apparatus
The present invention provides a method and system for using standard global computer network communication protocol to implement server driven “push” technology. An initial communication connection is established between a server and a client. The connection is...
07/31/2007
7231264Methods and articles for detecting, verifying, and repairing collinearity in a model or subsets of a model
Systematic methods to detect, verify, and repair a collinear model are presented. After detecting collinearity in a model or subsets of a model, a directional test is carried out to verify if the collinearity is real. The model can then be adjusted in either directi...
06/12/2007
7209793Automated closed loop step testing of process units
A multivariable process controller controls a chemical, polymer or other physical process. Slow tuning and over-conservative controlled variable values are employed during step testing. While all controlled process variables are within safe limits, only one manipula...
04/24/2007
7188637Methods, systems, and articles for controlling a fluid blending system
Described herein are methods, systems, and articles that are useful for controlling a fluid blending system, such as a fluid utility system. The methods, systems, and articles of this invention allow for the control of both a quantity metric (e.g., pressure) of the ...
03/13/2007
5809490Apparatus and method for selecting a working data set for model development
The present invention provides a data selection apparatus which augments a set of training examples with the desired output data. The resulting augmented data set is normalized such that the augmented data values range between -1 and +1 and such that the ...
09/15/1998
 
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