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Guptill
Dorian C. Guptill, Cornwall, VT US
| Patent application number | Description | Published |
|---|---|---|
| 20090301027 | Compositions and methods for sealing natural stone tiles and natural stone articles - The present invention relates to a method of sealing natural stone tiles and stone articles by applying and curing by UV radiation a liquid, solventless sealant onto natural stone tiles and articles to provide permanent protection, abrasion resistance, chemical and stain resistance and resistance to mold and other biological growth stains. The UV-curable solventless sealing composition comprises an effective amount of carboxyl functional, UV-curable reagent to provide for adhesion of the cured coating to the stone article. Additionally, the method describes the application of an optional liquid primer sealant comprising a UV-curable aqueous dispersion of an acrylate-functional resin. | 12-10-2009 |
| 20100190031 | METHOD FOR APPLYING AND CURING BY UV RADIATION A SEALANT SYSTEM ONTO NATURAL STONE TILES TO PROVIDE PERMANENT SEALING, PROTECTION, ABRASION RESISTANCE, STAIN AND MOLD RESISTANCE - The invention relates to a process for applying a liquid UV-curable primer sealant to natural stone tiles and related articles followed immediately by the exposure to a requisite amount of low intensity UVA-type UV radiation to partially cure the primer sealant. The partial curing, or pre-setting, of the primer sealant enables control of the ultimate depth of penetration of the primer sealer into the natural stone tiles and natural stone articles of which many examples are quite porous. Because the low level UV irradiation is instantaneous after the primer sealant application the level of primer sealant penetration into the natural stone surface is regulated. The pre-curing of the primer sealant is conducted to intentionally solidify or immobilize the sealant that has actually penetrated into the natural stone surface. The uppermost layers of the primer sealant are left in a semi-liquid or uncured state to allow for wetting and intermingling by the top sealant once it is applied. Thus, the prior art problem of uncontrolled wicking is solved by the present invention. | 07-29-2010 |
Douglas Guptill, Mountain View, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080226597 | EVOLVED INTERFERON-ALPHA POLYPEPTIDES - The present invention provides evolved interferon-alpha polypeptides, and conjugates thereof, and nucleic acids encoding the polypeptides. The invention also includes compositions comprising these polypeptides, conjugates, and nucleic acids; cells containing or expressing the polypeptides, conjugates, and nucleic acids; methods of making the polypeptides, conjugates, and nucleic acids; and methods of using the polypeptides, conjugates, and nucleic acids. | 09-18-2008 |
Robert Henry Guptill, Lampasas, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110185541 | STRAP ADJUSTMENT DEVICE - A strap adjustment device may be slid onto a cord or strap to adjust its useful length and the tension provided by the cord or strap. The strap adjustment device may include a housing, a first opening on a first end the housing for accepting a length of material through the housing, the first opening having a first portion and a second portion, the first portion having an arc shape, the second portion having a rectangular shape, and the first portion contiguously adjoining the second portion to form the first opening, and a locking mechanism for securing a portion of the length of material within the housing. | 08-04-2011 |