For the Inventor, By the Inventor

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Madison, WI, United States of America

Rovcal, Inc.

USPTO Granted Patents = 55

% Expired Patents = 29.1

EPO Patents = 11

Trademarks = 14

Forward Citations = 548

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92 inventors (with patents filed for the assignee):

David H Roland (11 out of 18 patents)

William C Bushong (10 out of 18 patents)

Viet H Vu (9 out of 16 patents)

4. Paul Allen Schmitt (8 out of 17 patents)

5. Ernest Ndzebet (8 out of 22 patents)

6. Cory R Boudreau (6 out of 61 patents)

7. Paul Cheeseman (5 out of 7 patents)

8. John M Fritz (5 out of 9 patents)

9. David Everett (4 out of 15 patents)

10. John Wilcox (4 out of 8 patents)

11. Mario Destephen (4 out of 6 patents)

12. Karthik Ramaswami (4 out of 5 patents)

13. Erik Mortensen (4 out of 5 patents)

14. Frank Mercurio (4 out of 20 patents)

15. William J Nitz (4 out of 7 patents)

Core Competencies:

Electric Hair Cutting Appliance

Personal Grooming Device

Electrochemical Cells

Alkaline Batteries

Rotary Shaver

Cleaning Solutions

Antimicrobial Coatings

Hair Styling Apparatus

Charging Regulation

High Capacity Cells

Heat Delivery System

Cutting Blade Assembly

55 patents: Sort by Forward Citations

1. 8453333 - Electric hand-held hair cutting appliance with blade clamping device (2013-06-04),

2. 8205623 - Coatings for personal grooming apparatus containing calcium carbonate derived from mollusk shells or pearls (2012-06-26),

3. 8177918 - Cleaning system for an electric shaver (2012-05-15),

4. 8119584 - Universal aqueous cleaning solution for electric shavers (2012-02-21),

5. 8091563 - Hair styling apparatus having cloth-covered heating member (2012-01-10),

6. 8079149 - Electric hair cutting appliance with counter weight (2011-12-20),

7. 8037613 - Shaving head for rotary shaver and method of manufacturing the same (2011-10-18),

8. 8003251 - Electrochemical cell grommet having a sidewall with a nonuniform thickness (2011-08-23),

9. 7931981 - Separators for alkaline electrochemical cells (2011-04-26),

10. 7897266 - Personal grooming device having a tarnish resistant, hypoallergenic and/or antimicrobial silver alloy coating thereon (2011-03-01),

11. D632434 - Personal grooming device (2011-02-08),

12. 7859220 - Method and apparatus for charging electrochemical cells (2010-12-28),

13. D621096 - Personal grooming device (2010-08-03),

14. D620643 - Lint remover (2010-07-27),

15. D620642 - Personal grooming device (2010-07-27),

Rovcal, Inc. is a leading provider of innovative robotic solutions for various industries. With a strong focus on research and development, Rovcal aims to revolutionize automation by pushing the boundaries of technology. Our advanced robotic systems are designed to optimize efficiency, enhance productivity, and reduce operational costs. We offer a wide range of robotic solutions for industries such as manufacturing, logistics, healthcare, and more. Our dedicated team of experts is committed to delivering cutting-edge solutions that empower businesses to achieve new levels of success.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

55 Patents

#18 in Madison, WI

#163 in Wisconsin

#6,436 in US

#12,878 in the World

Madison, WI, United States of America

Rovcal, Inc.

Forward Citations = 548

92 inventors:

David H Roland (11 out of 18 patents)

William C Bushong (10 out of 18 patents)

Viet H Vu (9 out of 16 patents)

4. Paul Allen Schmitt (8 out of 17 patents)

5. Ernest Ndzebet (8 out of 22 patents)

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