For the Inventor, By the Inventor

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Cambridge, MA, United States of America

The Schawbel Corporation

USPTO Granted Patents = 22

CIPO Patents = 2

EPO Patents = 1

Trademarks = 1

Forward Citations = 430

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14 inventors (with patents filed for the assignee):

Thaddeus Zaborowski (12 out of 13 patents)

James V Bonnema (6 out of 8 patents)

Stephen J Shapiro (4 out of 13 patents)

4. William Schawbel (4 out of 4 patents)

5. Wender Wang (3 out of 16 patents)

6. Paul E Furner (2 out of 133 patents)

7. Scott W Demarest (2 out of 140 patents)

8. Wen Der Wang (2 out of 5 patents)

9. Donald W Hildebrandt (2 out of 9 patents)

10. Alan R MacLeod (2 out of 2 patents)

11. Steven Shapiro (1 out of 2 patents)

12. Fred R Hayden (1 out of 1 patent)

13. Karl T Winkler (1 out of 27 patents)

14. William Schwabel (1 out of 1 patent)

15. James K Lynch (0 patent)

22 patents: Sort by Forward Citations

1. 8389909 - Heating device having electric and fuel powered heat sources (2013-03-05),

2. 8244115 - Combination flashlight and a device for dispensing a volatile substance (2012-08-14),

3. 7835631 - Combination light and a device for dispensing a volatile substance (2010-11-16),

4. D423071 - Device for dispensing a volatile substance (2000-04-18),

5. 5944508 - Portable heated appliance with catalytic heater with improved ignition (1999-08-31),

6. 5928605 - Device for dispensing a volatile substance (1999-07-27),

7. 5857262 - Cordless hydrocarbon fuel heated hairdryer (1999-01-12),

8. 5700430 - Device for dispensing a volatile substance (1997-12-23),

9. D351337 - Portable fuel cartridge (1994-10-11),

10. D317704 - Butane powered soldering iron (1991-06-25),

11. D315853 - Handle for a soldering iron (1991-04-02),

12. 4924849 - Portable heating appliance having fuel cartridge with on/off switch (1990-05-15),

13. 4917078 - Hair radiating jaw members for hair crimper (1990-04-17),

14. 4911186 - Convertible hair roller (1990-03-27),

15. 4852546 - Hair roller heating device (1989-08-01),

The Schawbel Corporation is a leading provider of innovative heating solutions for outdoor and indoor spaces. With a focus on high-quality, energy-efficient products, we offer a range of heaters designed to keep you warm and comfortable in any environment. Our dedication to customer satisfaction and cutting-edge technology has established us as a trusted name in the industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

22 Patents

#125 in Cambridge, MA

#901 in Massachusetts

#15,012 in US

#28,724 in the World

Cambridge, MA, United States of America

The Schawbel Corporation

Forward Citations = 430

14 inventors:

Thaddeus Zaborowski (12 out of 13 patents)

James V Bonnema (6 out of 8 patents)

Stephen J Shapiro (4 out of 13 patents)

4. William Schawbel (4 out of 4 patents)

5. Wender Wang (3 out of 16 patents)

Please report any incorrect information to [email protected]

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