MARK SHERWOOD QUADLING
Pilots at New Britton Dr, Plano, TX

2006018, Aug 17, 2006

Feb 17, 2005

10/906390

Henley Quadling - Dallas TX, US
Mark Quadling - Plano TX, US

D4D TECHNOLOGIES, LP - Richardson TX

A61C 5/10

433223000, 433218000, 433215000, 433202100

A method for generating a 3D model for a restoration is operative in a computer having a display. The method begins by obtaining a 3D model of the preparation. The preparation model may be obtained by an operator using a 3D digitizer. A “margin” curve on the preparation model is then determined. The method then continues by selecting a given 3D restoration cap model from a set of such models, where the set includes cap models that vary by one or more characteristics such as type, age, sex and ethnicity. The restoration cap model has a cap edge curve. According to the invention, the method then continues by fitting the restoration cap model over the preparation model (on the computer display) so that a minimum distance between the restoration cap and the restoration model is greater than a given minimum material thickness. The restoration cap model is then reshaped or otherwise scaled as necessary so that the restoration cap edge curve is related to the margin curve in a predetermined manner. In particular, preferably the cap edge curve is related to the margin curve by an angle from vertical that is equal or substantially equal to a given emergence angle at each point along the curve. To complete the model, a side surface is then created, preferably by lofting a surface from the margin curve to the cap edge curve.

2006020, Sep 14, 2006

Dec 24, 2005

11/317904

Basil Haymann - Dallas TX, US
Mark Quadling - Plano TX, US
Henley Quadling - Addison TX, US
Howard Frysh - Dallas TX, US
Jorey Chernett - PLano TX, US

A61C 8/00

433201100, 433229000

The present invention relates generally to mill blank constructions to facilitate the manufacture of dental restorations. A given mill blank is formed in a shape (i.e. with a given geometry) that has been predetermined to reduce material waste when the mill blank is machined into the final part. A set of two or more blanks each having such characteristics comprise a smart blank “library.” In one embodiment, a smart blank library includes a sufficient number of unique blanks such that, when the geometry of the designed restoration is known, the smart blank with a highest yield can be selected for use in milling the restoration. The “yield” of a given smart blank represents the amount of material of the smart blank that is actually used in the final restoration. Automated processes for smart blank inventory management and smart blank selection are also described.

8345257, Jan 1, 2013

Apr 19, 2010

12/762511

Garret T. Bonnema - Richardson TX, US
Henley S. Quadling - Dallas TX, US
Mark S. Quadling - Plano TX, US

D4D Technologies, LLC - Richardson TX

G01B 9/02

356479

A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.

8144954, Mar 27, 2012

Nov 7, 2008

12/266942

Mark Quadling - Plano TX, US
Andrei Tchouprakov - Plano TX, US
Gary Severance - Dallas TX, US
Glen Freeman - Trophy Club TX, US

D4D Technologies, LLC - Richardson TX

G06K 9/00

382128

Methods, systems, and devices for generating textured 3D models are provided. The present disclosure describes methods, systems, and devices for combining multiple images onto a 3D model. In some instances, the textures of the images are applied to the 3D model dynamically so that the textured 3D model is viewable from different viewpoints in real time on a display. The present disclosure also describes methods, systems, and devices for selecting the images and, in particular, the portions of the selected images to map to defined portions of the 3D model. In addition, the present disclosure describes how to adjust the images themselves to remove the effects of directional lighting. Some aspects of the present disclosure are particularly useful in the context of a 3D modeling of dental preparations. In some instances, a 3D digitizer is used to produce 3D models of dental preparations that are rendered on a display in real time and are fully 3D dimensional, while accurately depicting the surface textures of the item(s) being digitized.

8345261, Jan 1, 2013

Mar 22, 2012

13/427534

Mark S. Quadling - Plano TX, US
Henley S. Quadling - Dallas TX, US
Alan Blair - St. Paul MN, US

D4D Technologies, LLC - Richardson TX

G01B 11/02, G01B 9/02

356511, 356479, 356497

A digitized image of an object may include representations of portions of the object that are obscured, occluded or otherwise unobservable. The image may be a multi-dimensional visual representation of dentition. Characteristics of the dentition and its surfaces, contours, and shape may be determined and/or analyzed. A light may be directed toward and reflected from the dentition. The reflected light may be combined with a reference to determine characteristics of the dentition, including obscured areas such as subgingival tissue.

7342668, Mar 11, 2008

Sep 17, 2004

10/943273

Mark Quadling - Plano TX, US
Henley Quadling - Addison TX, US

D4D Technologies, LLC - Richardson TX

G01B 11/24, G06K 9/00

356603, 382154

A system provides high-speed multiple line digitization for three-dimensional imaging of a physical object. A full frame of three-dimensional data may be acquired in the same order as the frame rate of a digital camera.

7250945, Jul 31, 2007

Sep 9, 2002

10/238033

Thomas S. Scaman - Chanhassen MN, US
Mark Quadling - Plano TX, US
Henley Quadling - Plano TX, US

ScapeWare3d, LLC - Chanhassen MN

G06T 17/00

345420

A system and method for generating a realistic visual representation of forecast weather conditions. A “future time-lapse” video image of weather conditions effecting a given area may be generated automatically from a meteorologist's weather forecast. The resulting presentation may include a photo-realistic terrain background, an image of a landmark, such as a cityscape familiar to users, realistic three-dimensional cloud images, as well as informative textual and/or graphical overlays. Realistic fractal cloud images may be generated in an efficient manner by combining a plurality of slices taken through a spherical solid fractal texture to create three-dimensional cloud images.

7270592, Sep 18, 2007

Feb 22, 2005

11/062986

Rod Duncan - Plano TX, US
Joel Witt - Dallas TX, US
Mark Quadling - Plano TX, US
Henley Quadling - Dallas TX, US
Branko Bern - Plano TX, US

D4D Technologies, LLC - Richardson TX

B24B 49/00, B24B 51/00

451 6, 451 8, 451 65, 451132, 451190, 451262, 451451

The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are moved in the x-axis. A work piece or blank is manipulated in the y-axis and the z-axis. The tools are offset in the x-axis. Lights on a work space door are used to signal the condition of the mill machine and the milling operation. A tool changer allows the tools to be changed to accommodate other materials. A camera or other sensor is used to detect the location and wear on the tools.

2006017, Aug 3, 2006

Feb 1, 2005

10/906062

Henley Quadling - Addison TX, US
Mark Quadling - Plano TX, US
Robert Caflisch - Flower Mound TX, US

D4D TECHNOLOGIES, LP - Richardson TX

A61C 1/00, B29B 7/00

433229000, 428542800

The present invention relates generally to mill blank constructions. According to the invention, a “smart blank” is pre-configured into a form that closely resembles a restoration being designed. The blank comprises a body adapted to be shaped by material removal into an artificial tooth part having buccal-lingual, mesial-distal and occlusal-cervical axes. In an illustrative embodiment, the body has at most one symmetric plane that is defined by a buccal-lingual-occlusal-cervical cross-section whose normal is along the mesial-distal axis. The blank also includes a holder for mounting the blank in a shaping apparatus. The smart blank provides more efficient milling and high yield.

2006026, Nov 30, 2006

Aug 4, 2006

11/462574

Rod Duncan - Plano TX, US
Joel Witt - Dallas TX, US
Mark Quadling - Plano TX, US
Henley Quadling - Dallas TX, US
Jeffrey Prince - Grass Valley CA, US
Branko Bem - Plano TX, US
Rui Xu - Plano TX, US
Kirk Ray - Plano TX, US
Basil Haymann - Dallas TX, US
Anthony Starfield - St. Paul MN, US

D4D TECHNOLOGIES, L.P. - Richardson TX

B23Q 1/28

409064000

The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. A tool changer allows the tools to be changed to accommodate other materials. A camera is used to detect wear on the tools.