LexDanaLexDanabeta
Inventor

Phil Rha

Inventor
San Francisco, CA, US

Overview

7→
Patents
1998–2021
Patent span
Physics
Primary field (CPC G)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication36%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids18%
G06FElectric digital data processing18%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes18%
F04BPositive-displacement machines for liquids9%
PatentTitleYear
11,063,888Shared content item commenting202110,482,152File-level commenting201910,341,275Shared content item commenting20199,519,525'File-level commenting'20166,382,937'Tube pump'20026,059,550'Twin-cylinder impeller pump'20005,704,774'Pump with twin cylindrical impellers'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Based in Chunan Jenn, TW· patent location history
2000Based in Kyungki-do, KR· patent location history
2002Patents assigned to RHA PHIL CHAN (1)· patent assignee history
2002Based in Cheonan-city, KR· patent location history
2016–2021Patents assigned to DROPBOX INC (4)· patent assignee history
2016–2021Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DROPBOX INC42016–2021
RHA PHIL CHANself12002
Locations
LocationPatentsSpan
San Francisco, California, US42016–2021
Cheonan-city, KR12002
Kyungki-do, KR12000
Chunan Jenn, TW11998