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For the Inventor, By the Inventor

Grand Rapids, MI, United States of America

Ronald C Markham

This inventor holds 20 USPTO granted patents and 1 published patent application, primarily in Water Treatment Systems. Top assignees: Access Business Group International LLC, Amway Corporation, Philips IP Ventures B.v.. Active years: 1994-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ronald C Markham. Retrieved from https://idiyas.com/inventor/ronald-c-markham

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

Calculating rank
USPTO Granted Patents = 20 

% Patents Active = 70.0

Average Co-Inventor Count = 2.6

ph-index = 12

Forward Citations = 2,221(Granted Patents)


Location History:

  • Kentwood, MI (US) (1994 - 1998)
  • Tokyo, JP (2002)
  • Ada, MI (US) (2015 - 2016)
  • Grand Rapids, MI (US) (2004 - 2018)

Company Filing History:

goldMedal11 out of 524 
 
Access Business Group International LLC
 patents
silverMedal8 out of 230 
 
Amway Corporation
 patents
bronzeMedal1 out of 29 
 
Philips IP Ventures B.v.
 patents

Years Active: 1994-2018

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Areas of Expertise:
Inductively Coupled Ballast
Ultraviolet Disinfection
Water Purification
Fluid Treatment
Voltage Converter
RFID System
Home Water Systems
Intensity Control
End of Life Monitor
Automatic Disconnect
Treatment System Monitor
20 patents (USPTO):Explore Patents
1. 10014722 - Inductively coupled ballast circuit (2018-07-03),
2. 9590456 - Inductively coupled ballast circuit (2017-03-07),
3. 9482440 - Humidifier with ultraviolet disinfection (2016-11-01),
4. 9397524 - Inductively coupled ballast circuit (2016-07-19),
5. 9299493 - Inductively coupled ballast circuit (2016-03-29),
6. 8940085 - Humidifier with ultraviolet disinfection (2015-01-27),
7. 8618749 - Inductively coupled ballast circuit (2013-12-31),
8. 8222827 - Inductively coupled ballast circuit (2012-07-17),
9. 7385357 - Inductively coupled ballast circuit (2008-06-10),
10. 7180248 - Inductively coupled ballast circuit (2007-02-20),
11. 6825620 - Inductively coupled ballast circuit (2004-11-30),
12. 6673250 - Radio frequency identification system for a fluid treatment system (2004-01-06),
13. 6436299 - Water treatment system with an inductively coupled ballast (2002-08-20),
14. 5853572 - Home water purification system (1998-12-29),
15. 5738780 - Voltage converter for water treatment system UV bulb (1998-04-14),

Title: The Innovative Journey of Ronald C. Markham

Introduction:

Ronald C. Markham, a visionary inventor based in Grand Rapids, MI, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Ronald C. Markham holds several patents in various technological domains, including advancements in renewable energy systems, smart home devices, and medical equipment.

Career Highlights:

With a career spanning over two decades, Ronald C. Markham has established himself as a leading figure in the innovation landscape. His work has been recognized for its creativity and practicality, earning him numerous accolades in the industry.

Collaborations:

Throughout his career, Ronald C. Markham has collaborated with top research institutions, leading companies, and talented individuals to bring his ideas to life. His collaborative spirit has been instrumental in the success of many projects.

Conclusion:

In conclusion, Ronald C. Markham's passion for innovation and his relentless pursuit of excellence have solidified his position as a respected inventor in Grand Rapids, MI, and beyond. His contributions continue to inspire future generations of inventors to push the boundaries of what is possible in the world of technology.

Profile summary based on public USPTO records.
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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