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For the Inventor, By the Inventor

Kent, WA, United States of America

American Piledriving Equipment, Inc.

Calculating rank
USPTO Granted Patents = 60

% Expired Patents = 6.7



Forward Citations = 827

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15 inventors (with patents filed for the assignee):

goldMedal John L White (30 out of 35 patents)

silverMedal Paul W Suver (12 out of 15 patents)

bronzeMedal Kingsley S Evarts (5 out of 6 patents)

4.  Dan Miller (4 out of 8 patents)

5.  Steven N Cress (4 out of 4 patents)

6.  Joseph M Klekotka (4 out of 4 patents)

7.  Matthew E Fenwick (3 out of 3 patents)

8.  Eric C Legault (2 out of 2 patents)

9.  Dan Collins (2 out of 2 patents)

10.  Gerald A Cors (2 out of 2 patents)

11.  David A Yingling (2 out of 2 patents)

12.  Joseph G Wright (1 out of 1 patent)

13.  David White (1 out of 1 patent)

14.  Kelly Paul Goranson (1 out of 1 patent)

15.  Gerald Cors (1 out of 1 patent)


Core Competencies:
Vibratory Systems
Hydraulic Impact Hammers
Grout Plug Systems
Wick Drain Systems
Bearing Cooling
Preloaded Drop Hammer
Caisson Clamp
Pile Placement
Soil Penetration
Concrete Sheet Piles
Eccentric Vibration
Modular Plastic Piles

60 patents:

1. 12606972 - Variable moment vibratory systems and methods (2026-04-21),
2. 12247369 - Wick drain shoe systems and methods (2025-03-11),
3. 12129623 - Segmented ram systems and methods for hydraulic impact hammers (2024-10-29),
4. 11796225 - Geoexchange systems including ground source heat exchangers and related methods (2023-10-24),
5. 11624406 - Bearing cooling systems and methods for vibratory pile drivers (2023-04-11),
6. 11499285 - Grout plug systems and methods for placing piles (2022-11-15),
7. 11352759 - Wick drain shoe assemblies, systems, and methods (2022-06-07),
8. 11332906 - Grout plug systems and methods for placing piles (2022-05-17),
9. 10760602 - Systems and methods for connecting a structural member to a pile (2020-09-01),
10. 10538892 - Hydraulic impact hammer systems and methods (2020-01-21),
11. 10392871 - Earth boring systems and methods with integral debris removal (2019-08-27),
12. 10385531 - Split flight pile systems and methods (2019-08-20),
13. 10273646 - Guide systems and methods for diesel hammers (2019-04-30),
14. 9957684 - Systems and methods for installing pile structures in permafrost (2018-05-01),
15. 9856619 - Apparatus and methods for soil penetration and facilitating delivery of fluids (2018-01-02),
Company Overview
American Piledriving Equipment, Inc., based in Kent, WA, specializes in the development and manufacturing of advanced pile driving systems. The company focuses on innovative technologies such as vibratory systems, hydraulic impact hammers, and grout plug systems, catering to a variety of construction and engineering needs. Their expertise extends to wick drain systems, bearing cooling solutions, preloaded drop hammers, and caisson clamps, ensuring efficient and reliable pile placement for diverse projects across the industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

60 Patents

#7 in Kent, WA

#125 in Washington

#5,999 in US

#12,094 in the World

Kent, WA (US)
Kent, WA, United States of America

American Piledriving Equipment, Inc.

Forward Citations = 827

15 inventors:

goldMedal John L White (30 out of 35 patents)

silverMedal Paul W Suver (12 out of 15 patents)

bronzeMedal Kingsley S Evarts (5 out of 6 patents)

4.  Dan Miller (4 out of 8 patents)

5.  Steven N Cress (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: American Piledriving Equipment, Inc.. Retrieved from https://idiyas.com/company/american-piledriving-equipment

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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