1. •Automatic creation of book sections for multiple-printer output
2. •A method of collecting Human Visual System (HVS) data and processing the data for grayscale printer emulation
3. •Automatic vector color-description replacement with preferred color description within a digital vector drawing or page-layout document.
4. •Capturing data conversion errors in a halftone process
5. •Elimination of partial halftone dots by combining isotropic screens with cluster-dot screens
6. •Metadata controlled multi-phase halftone
7. •A method to produce a halftone bit-mask lookup table from two or more halftone threshold arrays

1.  
2. •Icefields standard error diffusion
3. •Quadtone reproduction resulting in a significant increase in gray levels from an 8-bit image
4. •Halftone conversion to another halftone
5. •Soft-proofing algorithm to read and display dot-screen data
6. •Quadtone ink density chemistry

1. •Icefields low-resolution error diffusion
2. •Icefields high-resolution error diffusion
3. •RGB color space conversion to CMYK halftones
4. •RGB to CMYK duotone transformation
5. •Decorative halftone-dot gradient screening program
6. •Cirlipse halftone dot (The first PostScript elliptical dot)
7. •Bilevel hybrid FM screens for Canon and Epson printers
8. •Halftone uniquely suited for the automotive silkscreen printing operation
9. •Screening technology for stamp making equipment
10. •Duotone to CMYK conversion

1. •Using Errors in Halftoning to Increase Reproduction Accuracy, IS&T/SPIE EI 2006
2. Original research describing how to capture data lost in the contone to halftone process
3.  
4. •Building a Contone to Halftone RIP tutorial, IS&T NIP21 2005
5.  
6. •Memory Colors Test Forms: Representation and Evaluation, IS&T/SPIE EI 2004
7. Original research connecting memory color to objects and language
8.  
9. •Image Quality and Halftoning tutorial, IS&T PICS 2002 and 2003
10.  
11. •The Technology of Duotone Color Transformations in a Color-Managed Workflow, IS&T/SPIE EI 2003
12. Survey of duotone to color space transformations
13.  
14. •Re-purposing Device-Dependent Screens for Unintended Printers, IS&T NIP 2001
15. Halftone to halftone transformations not requiring inverse transforms
16.  
17. •Analysis of a Threshold Modulation Dither Using Space Curve Point Movement, Forward Propagation and Noise Removal, SPIE EI 2000
18. Technical description of Herron’s Standard FM screen
19.  
20. •The Technology Used for Quadtone Inkjet Printing, SPIE EI 1999
21. Original research describing printing with four and six shades of gray ink
22.  
23. •Recent Progress in Digital Halftoning II, (2 papers) IS&T publisher, 1999
24.  
25. •Color Management without Cost, Graphic Exchange magazine, 1998
26.  
27. •Color Gamut Analysis of Frequency Modulated Screen Reproduction, IS&T PICS 1998
28. Original research describing how various halftones determine the shape of the color gamut
29.  
30. •An Exploration of the Pantone Hexachrome Six-Color System Reproduced by Stochastic Screens, Proceedings of IS&T’s Fourth Color Imaging Conference, 1996
31.  
32. •An Analysis of the Hexachrome Color Mixing System, Graphic Exchange magazine, 1996
33.  
34. •Image Mapping to Control Frequency Modulated Screening, Proceeding of IS&T’s Fourth Technical Symposium on Prepress, 1995
35. Original research describing segmenting an image for object appropriate halftones