For the Inventor, By the Inventor

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Louisville, OH, United States of America

H-p Products, Inc.

USPTO Granted Patents = 30

EPO Patents = 2

Trademarks = 32

Forward Citations = 178

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12 inventors (with patents filed for the assignee):

Darrell V Nieschwitz (20 out of 22 patents)

Shawn C Metz (16 out of 18 patents)

Greg A Calderone (14 out of 16 patents)

4. James F Smith (10 out of 16 patents)

5. Andrew L Gabric (7 out of 7 patents)

6. Wesley A Schroeder (2 out of 34 patents)

7. John P Bishop (1 out of 1 patent)

8. Gregory A Calderone (1 out of 1 patent)

9. Leland J Dick (1 out of 1 patent)

10. Robert F McGrath (1 out of 1 patent)

11. Donald V Bailey (1 out of 2 patents)

12. Benjamin A Scholles (1 out of 1 patent)

30 patents: Sort by Forward Citations

1. 12256886 - Vacuum inlet valve assembly with sliding pins (2025-03-25),

2. 12178382 - Central vacuum system and inlet valves therefor (2024-12-31),

3. 12016517 - Adapter for a vacuum hose (2024-06-25),

4. 11903553 - Vacuum hose having an integrated switch (2024-02-20),

5. 11896187 - Central vacuum system and inlet valves therefor (2024-02-13),

6. 11707174 - Vacuum inlet valve assembly with sliding pins (2023-07-25),

7. 11534044 - Vacuum inlet valve assembly with a closeable seal (2022-12-27),

8. 11484165 - Vacuum inlet valve assembly (2022-11-01),

9. 11096534 - Central vacuum system and inlet valves therefor (2021-08-24),

10. 11019967 - Central vacuum system and inlet valves therefor (2021-06-01),

11. 10973382 - Central vacuum system and inlet valves therefor (2021-04-13),

12. 10820763 - Central vacuum system and inlet valves therefor (2020-11-03),

13. D885000 - Hose valve assembly for vacuum cleaning device (2020-05-19),

14. 10433690 - Central vacuum system and inlet valves therefor (2019-10-08),

15. 9782047 - Vacuum tube locking collar (2017-10-10),

H-P Products, Inc. is a leading manufacturer of central vacuums, air hoses, and tubings. With over 70 years of experience, they deliver high-quality products to residential and commercial markets. H-P Products focuses on innovative solutions, offering efficient and convenient cleaning systems for homes, businesses, and industry. They prioritize customer satisfaction and continually strive to exceed expectations with their wide range of reliable and durable products.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

30 Patents

#1 in Louisville, OH

#463 in Ohio

#10,864 in US

#21,191 in the World

Louisville, OH, United States of America

H-p Products, Inc.

Forward Citations = 178

12 inventors:

Darrell V Nieschwitz (20 out of 22 patents)

Shawn C Metz (16 out of 18 patents)

Greg A Calderone (14 out of 16 patents)

4. James F Smith (10 out of 16 patents)

5. Andrew L Gabric (7 out of 7 patents)

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