Patent Prosecution

We have successfully prosecuted hundreds of valuable U.S. and international patents for our clients. These patents span the electrical, mechanical, chemical and biological arts and include many diverse technologies.

Representative Patents:

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Adobe PDF logo Polo Box Therapeutic Compositions, Methods, and Uses Therefor(PDF: 2.84MB)
U.S. Patent No. 6,358,738
The President and Fellows of Harvard College

Patent 6,358,738

This patent is directed to inhibiting division of cells by inhibiting a cell polo kinase, which plays a role in mitosis.

Adobe PDF logo Automatic Genotype Determination (PDF: 827kB)
U.S. Patent No. 5,762,876
Molecular Tool, Inc.

Patent 5,762,876

The use of single nucleotide polymorphisms (SNPs) for identification purposes would not be possible without a reliable system for identifying them on the basis of instrument readings. This patent covers a sophisticated probabilistic analytical tool used in genotype determination.



Adobe PDF logo Filter Sterilization for Production of Colloidal Superparamagnetic MR Contrast Agents (PDF: 722kB)
U.S. Patent No. 5,160,726
Advanced Magnetics, Inc.

Patent 5,160,726

Even though a composition might be generally known, it may still be novel and inventive to identify a method of handling the composition to provide improved characteristics. This patent covers filter sterilization of a magnetic resonance imaging contrast agent as a way of reducing agent toxicity, compared with terminally sterilizing the agent.



Adobe PDF logo Search Algorithm for Large Vocabulary Speech Recognition(PDF: 703kB)
U.S. Patent No. 6,275,802
Lernout and Hauspie Speech Products, N.V.

Patent 6,275,802

We have obtained patent protection for various clients in the field of signal processing. Among these patents is U.S. Patent No. 6,275,802, which describes an improvement to automatic speech recognition techniques. The patent claims a search algorithm for decoding recognition hypotheses using a more efficient forward-backward search.

Adobe PDF logo Matrix Controlled Expert System Producible from Examples(PDF: 1.5MB)
U.S. Patent No. 4,730,259
Stephen I. Gallant

Patent 4,730,259

At the time it was filed, this patent represented both the legal and technical cutting edge in the computer software field. The patentability of software had not yet been clearly established. This patent has appeared on a short list of the very first patents in the field of expert systems.


Adobe PDF logo Apparatus and Method for Graphical Display of Statistical Effects in Categorical and Continuous Outcome Data (PDF: 2.4MB)
U.S. Patent No. 5,452,410
SI Software Limited Partnership

Patent 5,452,410

Even a straight line graph can be patented if the function producing the graph is novel and inventive. This patent concerns the representation of statistical effects of different conditions on a categorical or continuous outcome. This patent, which is heavily computational, was issued long before the State Street Bank decision made clear that such subject matter was patentable.


Adobe PDF logo Home Interface Controller for Providing Interactive Cable Television(PDF: 2.6MB)
U.S. Patent No. 6,100,883
ICTV, Inc.

Patent 6,100,883

Sunstein has prosecuted a portfolio of patents devoted to the emerging industry of interactive television. Our client ICTV has developed technology that enables cable television subscribers to receive video programming that allows them to interact with their television to play games, videos, and music on demand; browse news, sports and weather; and view targeted interactive advertising.

Adobe PDF logo Switch with Programmable Delay (PDF: 2.4MB)
U.S. Patent No. 5,955,910
Cherry Semiconductor Corporation

Patent 5,955,910

This is one of several patents protecting the integrated circuit shown in the figure. This circuit filled a long felt need for a synchronous switch post regulator integrated circuit.




Adobe PDF logo Portfolio Optimization By Means of Resampled Efficient Frontiers(PDF: 644kB)
U.S. Patent No. 6,003,018
Michaud Partners LLP

Patent 6,003,018

Sophisticated statistical techniques applied to the management of investment portfolios are the subject of U.S. Patent No. 6,003,018. Patent claims include methods for assigning portfolio weights to assets based on optimization procedures, as well as a computer program product for carrying out these methods.


Adobe PDF logo Personal Mobility Vehicles and Methods (PDF: 1.4MB)
U.S. Patent No. 6,302,230
DEKA Products Limited Partnership

Patent 6,302,230

Self-balancing personal transporters, such as the Segway™ Human Transporter, may transform urban transportation. We have prepared and prosecuted a variety of patents covering this important emerging technology for our client DEKA Products Limited Partnership. U.S. Patent No. 6,302,230 is one such patent, addressing methods of alerting a rider to speed limits.


Adobe PDF logo Folded Guide Link Stirling Engine (PDF: 1.1MB)
U.S. Patent No. 6,253,550
New Power Concepts LLC.

Patent 6,253,550

A Stirling engine uses externally applied heat to drive pistons that deliver clean, quiet power for a variety of applications. We have successfully prosecuted patents for our client, New Power Concepts LLC, that relate to mechanical components of Stirling cycle heat engines. For example, U.S. Patent No. 6,253,550 relates to increasing Stirling engine operating efficiency and lifetime, while reducing their size, complexity and cost.


PDF icon Pneumatic Support System (PDF: 1.0MB)
U.S. Patent No. 5,367,726
Robert B. Chaffee

Patent 5,367,726

Beds that are inflated via an electric motor are popular with consumers for their portability and ease of use. The pneumatic support system that is the subject of this patent has been used in the Aerobed™ air mattress product, and includes a valve for providing a hermetic seal under low pressure conditions.


Adobe PDF logo Apparatus and Method for Acoustic Analysis of Bone Using Optimized Functions of Spectral and Temporal Signal Components (PDF: 1.8MB)
U.S. Patent No. 5,720,290
Metra Biosystems, Inc.

Patent 5,720,290

A suite of patents protects a range of technologies employed in a compact ultrasonic device that measures bone density as an aid in detecting osteoporosis. One of those patents, U.S. Patent No. 5,720,290, relates to novel transient signal processing techniques in this context.



Adobe PDF logo Synthesis of Polysaccharide Covered Superparamagnetic Oxide Colloids (PDF: 975kB)
U.S. Patent No. 5,262,176
Advanced Magnetics, Inc.

Patent 5,262,176

Compositions of this patent are pertinent to magnetic resonance images, and for this reason are designed to have significant half-life in the blood. Some of the claims of this patent cover methods and compositions that are both interesting and broad because they include functional requirements for the compositions.


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