Inventor
Michael J. Campbell
Inventor
Louisville, KY, US
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Bprimary
A61BDiagnosis18%
B01DSeparation12%
C01BNon-metallic elements8%
F01LCyclically operating valves for machines or engines6%
F01PCooling of machines or engines in general6%
F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers6%
A61MDevices for introducing media into, or onto, the body4%
D03DWoven fabrics4%
Y10TTechnical subjects covered by former us classification4%
A01BSoil working in agriculture or forestry2%
PatentTitleYear
10,731,516Sliding spring contacts providing electrical power to rocker arms202010,731,518Sliding contact for electrically actuated rocker arm202010,358,951Sliding contact for electrically actuated rocker arm201910,155,621Sea container bracket201810,082,350Heat exchanger blower system2018D0822458Sea container bracket20189,568,260'Heat exchanger blower method'20179,334,788'Heat exchanger blower system and associated method'20168,216,189'Continuous gas flow trocar assembly'20127,413,559'Gas flow trocar arrangement'20087,338,473'Pneumoseal trocar arrangement'20087,285,112'Gas flow trocar arrangement'20077,219,534'Method and apparatus for determining transpiration characteristics of a permeable membrane'20077,195,595'Method and apparatus for monitoring the efficacy of fluid resuscitation'20077,182,752'Continuous gas flow trocar assembly'20076,673,008'Fallopian tube and method of in vitro fertilization and embryo development'20046,612,632'Child\'s handheld digging implement'20036,451,024'Surgical method for treating urinary incontinence, and apparatus for use in same'20026,370,426'Method and apparatus for measuring relative hydration of a substrate'20026,049,781'Relocation tracking system and method'20005,335,753'Collapsible support stand'19945,318,759'Membrane/PSA-deoxo process for nitrogen production'1994RE034434'Oxygen enriched air system'1993RE033678'Membrane separation system and process'19914,960,579'Membrane process and system for nitrogen production'19904,867,766'Oxygen enriched air system'19894,806,132'Turndown control method for membrane separation systems'19894,787,919'Membrane separation system and process'19884,761,321'Corrugated woven fabric'19884,690,486'Four position interlacing apparatus'19874,604,315'High bulk, biaxial elastic, heat shrunk fabric'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1990Patents assigned to UNION CARBIDE CORP (4)· patent assignee history
1988–1994Based in Clarence Center, NY, US· patent location history
1994–2016Patents assigned to CAMPBELL MICHAEL J (3)· patent assignee history
2002–2012Based in Louisville, KY, US· patent location history
2007–2012Patents assigned to SURGIQUEST INC (5)· patent assignee history
2016–2018Patents assigned to HORTON INC (3)· patent assignee history
2016–2018Based in Bloomington, MN, US· patent location history
2018Based in Charlotte Hall, MD, US· patent location history
2019–2020Patents assigned to EATON INTELLIGENT POWER LTD (3)· patent assignee history
2019–2020Based in Scotts, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SURGIQUEST INC | 5 | 2007–2012 |
| UNION CARBIDE CORP | 4 | 1988–1990 |
| CAMPBELL MICHAEL Jself | 3 | 1994–2016 |
| EATON INTELLIGENT POWER LTD | 3 | 2019–2020 |
| HORTON INC | 3 | 2016–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Louisville, KY, US | 7 | 2002–2012 |
| Clarence Center, New York, US | 7 | 1988–1994 |
| Scotts, MI, US | 3 | 2019–2020 |
| Bloomington, Minnesota, US | 3 | 2016–2018 |
| Charlotte Hall, Maryland, US | 2 | 2018 |