Technologies

Explore WARF Inventions and Patents

WARF Technologies

WARF’s portfolio of more than 1,600 patented technologies covers a wide range of categories, including analytical instrumentation, pharmaceuticals, food products, agriculture, research tools, medical devices, pluripotent stem cells, clean technology, information technology and semiconductors.

Information summaries, which describe each technology and its applications, benefits, inventors and patent status, can be downloaded, printed and shared by clicking on the technology category links to the left on this page.

Visit our subscription center to sign up for our monthly email updates and learn when new WARF technologies become available for licensing.

New Inventions

New and More Potent UGM Inhibitors for Treating Tuberculosis, Other Microbial Infections

UW–Madison researchers have developed a new set of UGM inhibitors to fight tuberculosis and other diseases caused by microbial infections. The compounds feature an N-acylsulfonamide motif and are more potent in vitro than inhibitors previously identified by the researchers.
P160093US01

HealthPet Auto-Feeder

Developed out of the University of Wisconsin-Platteville, the HealthPet Auto-Feeder is a wet-food pet feeder that automatically feeds cats and dogs by storing and delivering up to 15 heat-packed food pouches in 2-ounce serving containers allowing for multiple feedings per day. Additional pouches can be added with further modification to increase the quantity that can be dispensed. Food containers are stored vertically in revolving cylinders on top of the feeder and released with an electric timer that allows pet owners to program feeding times throughout the day. A conveniently located storage container has been designed so that it can be removed with ease for disposal of empty containers. The device has been designed so that it is completely motorized, user friendly and can be adapted for use with a mobile app for remote control.
T150013US02

Novel Antimicrobial Food Packaging with Enhanced Safety

  • A UW-Stout researcher has developed a practical and cost effective method for surface modification of commonly used plastics using UV induced photo-grafting. Preliminary studies have demonstrated that this method is capable of generating a plastic product with strong covalent linkages to an antifungal compound. Proof of concept studies have focused on the use of low density polyethylene (LDPE), which is conventionally used for cling wrap, and the antifungal, natamycin, which is a natural substance generally recognized as safe (GRAS) by the US Food and Drug Administration and designated as a natural preservative by the European Union.
  • In initial studies during storage at 3 degrees Celsius for 1-2 weeks, the natamycin-bound LDPE plastic inhibited growth of the fungus Penicillium chrysogenum by 60% in agar and by 100% in cantaloupe, and similar outcomes were observed for yeast Saccharomyces cerevisiae. These results demonstrate the clear efficacy of the antifungal grafted plastic, making it a compelling candidate for a product that prevents spoilage while also avoiding migration of preservatives to food. Similar strategies could be used to develop other polyolefin plastics grafted with other antifungal compounds, and they could be applied beyond food, in areas including but not limited to textiles as well as healthcare.
T160012US01

New System for Producing Fungal Secondary Metabolites

UW–Madison researchers have developed a new system for producing fungal secondary metabolites using test plasmids and a genetically modified strain of Aspergillus nidulans (TPMW2.3). The strain begins producing secondary metabolites when a gene promoter in the plasmid is triggered by culture conditions. This allows researchers to induce or repress production.
P150029US02

Covalently Linked Soft Networks of Gold Nanoparticles

A researcher at UW-Eau Claire has invented a method for efficient fabrication of gold nanoparticle plasmonic waveguides. Nanoparticles are synthesized and purified by known techniques and cast upon an air-water interface. A solution is introduced to the nanoparticles and upon evaporation the nanoparticles form a crosslinked coherent network. The crosslinking imparts a mechanical strength to the film, permitting further manipulation including transfer to solid substrates and surface chemical modification. Incorporation of photoreactive crosslinkers renders the process reversible.
T130010US02
View More

New Patents

Bacteria Modified to Secrete Biologically Active Protein for Large-Scale Production

UW–Madison researchers have discovered E. coli mutations that substantially increase the amount of biologically active, recombinant protein secreted from cells.  The mutations disrupt genes in a YebF-mediated protein secretion pathway.  Bacteria modified to contain these mutations are useful for the production of secreted proteins.  They can be used to produce proteins that might otherwise not be expressed due to toxicity or folding errors.  They also can be used to produce secreted complexes of enzymes such as cellulases and xylanases for the manufacture of cellulosic biofuels.
P100362US02

Enhanced Traveling Wave Tube

UW–Madison researchers have designed a slow wave structure that can enhance the gain and output power of a TWT.

The modified slow wave structure has ports to receive and output amplified radiofrequency (RF) signals. It is made of two different materials that repeat at periodic intervals, e.g., the first material may be a vacuum and the second material may be a metal plate or wire mesh. The second material has a real part of permittivity that is negative and a real part of permeability that is positive at an operational frequency of the RF signal. An electron beam vacuum tube runs through the center of the slow wave structure.
P140188US01

Devices and Methods for Immobilizing Liquid Crystal Droplets onto a Chemically Functionalized Substrate Surface

UW–Madison researchers have developed devices and methods for immobilizing micrometer-sized liquid domains such as liquid crystal or isotropic oil droplets on a variety of chemically-functionalized surfaces. A multifunctional polymer, which may be a polyamine, is adsorbed at the surface interface of the liquid crystal droplets. Then the droplets are immobilized by covalent bonding, electrostatic interactions or other interactions between the adsorbed polymer and the functionalized substrate surface. The immobilized droplets can be used, for example, in liquid crystal droplet-based sensing devices or devices engineered to possess optical band gaps.
P100260US02
View More