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For the Inventor, By the Inventor

Grand Rapids, MI, United States of America

Dlp Limited


USPTO Granted Patents = 94

% Expired Patents = 18.1



Trademarks = 8

Forward Citations = 1,795

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47 inventors (with patents filed for the assignee):

goldMedal Robert William Stimpson (37 out of 37 patents)

silverMedal James Edward Self (25 out of 26 patents)

bronzeMedal James H DeVries (16 out of 23 patents)

4.  Yanchun Wang (12 out of 13 patents)

5.  Graham Robin Lock (12 out of 13 patents)

6.  Ian Felmeri (10 out of 10 patents)

7.  Mark Ian Luxton (8 out of 8 patents)

8.  Richard E Davis (6 out of 27 patents)

9.  Kenneth R Jonkman (6 out of 25 patents)

10.  Stuart J Marcadis (5 out of 7 patents)

11.  Roderick E Briscoe (4 out of 30 patents)

12.  Paul F Rom (4 out of 15 patents)

13.  Gary Moore (4 out of 4 patents)

14.  Iain Stuart Fenna (3 out of 4 patents)

15.  Jean-Pierre Podgorski (3 out of 12 patents)


Core Competencies:
Shower
Drainage Systems
Waste Outlet Units
Shower Floor Assemblies
Pumped Shower
Shower Tray
Electric Water Heater
Grab Rail
Foldable Shower Seat
Prosthetic Material
Surgical Instrument
Orthopedic Implant

94 patents:

1. 11253108 - Shower (2022-02-22),
2. D917679 - Shower floor former assembly (2021-04-27),
3. 10988919 - Shower floor assembly (2021-04-27),
4. 9452004 - Device for compressing two bone parts (2016-09-27),
5. 9131946 - Surgical instrument for a technique for attaching bone fragments using a cannulated screw (2015-09-15),
6. 8813273 - Waste water outlet unit (2014-08-26),
7. 8677521 - Shower floor formers (2014-03-25),
8. 8597363 - Prosthetic material for replacing at least one portion of the radial glenoid of a radius (2013-12-03),
9. 8480883 - Pipe coupling with integrated filter and flow detector (2013-07-09),
10. 8403647 - Shower waste pump control device (2013-03-26),
11. 8393021 - Adaptor for a non-flexible floor covering (2013-03-12),
12. 8370982 - Ramp (2013-02-12),
13. 8312596 - Hinge assembly (2012-11-20),
14. 8286279 - Pumped waste (2012-10-16),
15. 8277159 - Manx fastener (2012-10-02),
Dlp Limited, based in Grand Rapids, MI, specializes in innovative shower technology, focusing on enhancing user experience and functionality in bathroom environments. The company develops a range of products including advanced drainage systems, waste outlet units, and shower floor assemblies, ensuring efficient water management and safety. Their expertise extends to electric water heaters and grab rails, catering to both residential and commercial markets. Dlp Limited is committed to quality and innovation in shower solutions, contributing to modern bathroom design.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Dlp Limited
94 Patents

#6 in Grand Rapids, MI

#154 in Michigan

#3,976 in US

#8,178 in the World

Grand Rapids, MI (US)
Grand Rapids, MI, United States of America

Dlp Limited

Forward Citations = 1,795

47 inventors:

goldMedal Robert William Stimpson (37 out of 37 patents)

silverMedal James Edward Self (25 out of 26 patents)

bronzeMedal James H DeVries (16 out of 23 patents)

4.  Yanchun Wang (12 out of 13 patents)

5.  Graham Robin Lock (12 out of 13 patents)

Please report any incorrect information to [email protected]
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