Inventor
John Angelosanto
Inventor
Attleboro, MA, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties19%
F04BPositive-displacement machines for liquids16%
B01DSeparation14%
Y10TTechnical subjects covered by former us classification14%
F16JPistons8%
F16KValves8%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure8%
B29BPreparation or pretreatment of the material to be shaped3%
F17CVessels for containing or storing compressed, liquefied or solidified gases3%
G01BMeasuring length, thickness or similar linear dimensions3%
PatentTitleYear
9,835,597Device capable of pressurization and associated systems and methods20179,770,678'Synchronized vacuum degassing for liquid chromatography'20179,744,477'Purge method for low pressure gradient formation liquid chromatography'20179,645,123'Manifold for solvent mixing in liquid chromatography systems'20179,381,447'Force balance needle valve pressure regulator for carbon dioxide based chromatography'20169,377,011'High pressure pump with reduced seal wear'20168,960,071'Piston pump with leak diagnostic port'20158,333,568'Device and methods of measuring pressure'20128,297,589'Active valve and methods of operation thereof'20128,176,932'Defined leak path for high pressure seal'20127,665,480'Defined lead path for high pressure seal'20105,656,782'Pressure sealed housing apparatus and methods'1997D0366000'Pressure transmitter housing'19965,065,611'System for calibrating the span of pressure measuring instruments'19914,604,891'Reference pressure devices for calibrating pressure-measuring instruments'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1997Patents assigned to FOXBORO CO (3)· patent assignee history
1986–2017Based in Attleboro, MA, US· patent location history
2010–2017Patents assigned to ANGELOSANTO JOHN (7)· patent assignee history
2010–2016Patents assigned to LUONGO JOSEPH A (5)· patent assignee history
2012–2017Patents assigned to WATERS TECHNOLOGIES CORP (10)· patent assignee history
2015–2016Patents assigned to ALMEIDA NEAL B (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WATERS TECHNOLOGIES CORP | 10 | 2012–2017 |
| ANGELOSANTO JOHNself | 7 | 2010–2017 |
| LUONGO JOSEPH A | 5 | 2010–2016 |
| FOXBORO CO | 3 | 1986–1997 |
| ALMEIDA NEAL B | 2 | 2015–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Attleboro, Massachusetts, US | 15 | 1986–2017 |