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For the Inventor, By the Inventor

Red Bud, IL, United States of America

Snyder General Corporation


USPTO Granted Patents = 18


Trademarks = 12

Forward Citations = 227

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8 inventors (with patents filed for the assignee):

goldMedal Russell W Hoeffken (11 out of 23 patents)

silverMedal Robert P Shapess (3 out of 6 patents)

bronzeMedal John M Wiese (3 out of 3 patents)

4.  David B Schumacher (2 out of 2 patents)

5.  Herbert S Mahanay (1 out of 1 patent)

6.  Steven J Bakowski (1 out of 1 patent)

7.  Gordon F Redington (1 out of 3 patents)

8.  Spiridon Trigourea (1 out of 1 patent)

9.  Leonard J O'dell (0 patent)


18 patents:

1. 5024595 - Furnace protective device (1991-06-18),
2. 4907420 - Dual wall evaporator pan (1990-03-13),
3. 4893390 - Method and expander for manufacturing a furnace heat exchanger and plate (1990-01-16),
4. 4892045 - Condensate drain system (1990-01-09),
5. 4718484 - Heat exchanger unit (1988-01-12),
6. 4663837 - Apparatus for manufacturing a furnace heat exchanger and plate assembly (1987-05-12),
7. 4649894 - Heat exchanger and plate assembly and method of manufacture (1987-03-17),
8. 4648854 - Variable speed drive (1987-03-10),
9. 4587403 - Thermostat setback controller sub-base (1986-05-06),
10. 4547943 - Method of manufacturing a heat exchanger and plate assembly (1985-10-22),
11. 4538338 - Method for manufacturing a furnace heat exchanger and plate assembly (1985-09-03),
12. 4510660 - Method of manufacturing a two-plate heat exchanger (1985-04-16),
13. 4501193 - Mounting curb for multiple unit air conditioning system (1985-02-26),
14. 4489568 - Ground water heat pump system (1984-12-25),
15. 4475585 - Air conditioning and heat pump cabinets with removable coil guards (1984-10-09),
Company Overview
Snyder General Corporation specializes in the design and manufacturing of heating, ventilation, and air conditioning (HVAC) solutions. With a focus on delivering high-quality products, the company serves various sectors, including residential, commercial, and industrial markets. Based in Red Bud, Illinois, Snyder General is committed to innovation in energy efficiency and environmental sustainability, ensuring that its offerings meet the evolving needs of customers while adhering to industry standards and regulations.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#2 in Red Bud, IL

#915 in Illinois

#17,952 in US

#34,187 in the World

Red Bud, IL (US)
Red Bud, IL, United States of America

Snyder General Corporation

Forward Citations = 227

8 inventors:

goldMedal Russell W Hoeffken (11 out of 23 patents)

silverMedal Robert P Shapess (3 out of 6 patents)

bronzeMedal John M Wiese (3 out of 3 patents)

4.  David B Schumacher (2 out of 2 patents)

5.  Herbert S Mahanay (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Snyder General Corporation. Retrieved from https://idiyas.com/company/snyder-general

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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