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For the Inventor, By the Inventor

Rutland, VT, United States of America

Questech Corporation


USPTO Granted Patents = 25



Trademarks = 6

Forward Citations = 229

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26 inventors (with patents filed for the assignee):

goldMedal Robert Billing (9 out of 10 patents)

silverMedal Roger Questel (7 out of 7 patents)

bronzeMedal Nicholas Barton (6 out of 7 patents)

4.  Douglas J Croteau (4 out of 4 patents)

5.  Paul Thottathil (2 out of 36 patents)

6.  John M Ryan (2 out of 23 patents)

7.  Satyabrata Mukherjee (2 out of 9 patents)

8.  Barry Culkin (2 out of 2 patents)

9.  Purushoth Kesavan (2 out of 2 patents)

10.  David Pelletier (2 out of 2 patents)

11.  Larry Wasowski (2 out of 2 patents)

12.  Dorian C Guptill (2 out of 2 patents)

13.  Robert E Harrington (2 out of 6 patents)

14.  E Laurence Libelo (2 out of 2 patents)

15.  David E Palaith (2 out of 3 patents)


25 patents:

1. 11739234 - Natural stone sealer compositions (2023-08-29),
2. 10532956 - Natural stone sealer compositions (2020-01-14),
3. D823616 - Wall niche with centering devices and spacers (2018-07-24),
4. D732375 - Switch plate assembly (2015-06-23),
5. 8999507 - 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, and natural stone tiles produced by the method (2015-04-07),
6. D688935 - Switch plate assembly (2013-09-03),
7. 8323749 - 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 (2012-12-04),
8. 6239846 - Digital video effects, apparatus and method (2001-05-29),
9. 5908505 - High volume, textured liquid transfer surface (1999-06-01),
10. 5822015 - Providing an accurate tally indication of sources in use for output (1998-10-13),
11. 5663868 - Stackable electronic equipment assembly with improved circuit board (1997-09-02),
12. 5661489 - Enhanced electronically steerable beam-forming system (1997-08-26),
13. 5524091 - Accurate digital divider (1996-06-04),
14. 5293233 - Digital video effects with image mapping on to curved surface (1994-03-08),
15. 5227884 - Processing of video image signals (1993-07-13),
Questech Corporation is a leading provider of custom solutions in the areas of software development, data analytics, and digital marketing. Established in 2006, we have a dedicated team of professionals who are committed to delivering innovative technology solutions to help our clients achieve their business goals. Our services range from building custom software applications to implementing data-driven marketing campaigns. We pride ourselves on our client-centric approach and our ability to deliver high-quality results on time and within budget.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

25 Patents

#2 in Rutland, VT

#20 in Vermont

#12,911 in US

#24,931 in the World

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Rutland, VT, United States of America

Questech Corporation

Forward Citations = 229

26 inventors:

goldMedal Robert Billing (9 out of 10 patents)

silverMedal Roger Questel (7 out of 7 patents)

bronzeMedal Nicholas Barton (6 out of 7 patents)

4.  Douglas J Croteau (4 out of 4 patents)

5.  Paul Thottathil (2 out of 36 patents)

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