Inventor
Michael L. Hair
Inventor
Oakville, CA
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling27%
G03GElectrography27%
F16KValves20%
C09DCoating compositions, e.g. paints, varnishes or lacquers7%
B82YSpecific uses or applications of nanostructures3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
10,794,143Sub-surface safety valve flapper sleeve202010,371,284Local position indicator for subsea isolation valve having no external position indication20199,810,343'Pressure compensated flow tube for deep set tubular isolation valve'20179,745,822'Flapper valve'20179,739,119'Penetrator for a puncture communication tool and method'20179,719,326'Switch between redundant control systems for a subsurface safety valve'20179,068,661'Curved flapper seal with stepped intermediate surface'20158,863,767'Alignment system for flapper valve'20148,844,631'Debris removal system for downhole closure mechanism, and method thereof'20145,376,172'Metal oxide processes and toners thereof'19944,816,370'Developer compositions with stabilizers to enable flocculation'19894,789,616'Processes for liquid developer compositions with high transfer efficiencies'19884,766,049'Latex based colored liquid developers'19884,705,567'Ink jet compositions with insoluble dye complexes'19874,680,332'Ink jet compositions and process for preparation thereof'19874,613,559'Process for colored toner compositions with controlled charges thereon'19864,476,210'Dyed stabilized liquid developer and method for making'19844,272,596'Electrophoretic display device'19814,075,013'Electrophotochemical preparation of selenium photoconductive members'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2017Patents assigned to HAIR MICHAEL L (6)· patent assignee history
1978–1994Based in Oakville, CA· patent location history
1981–1994Patents assigned to XEROX CORP (9)· patent assignee history
2014–2017Patents assigned to BAKER HUGHES INC (7)· patent assignee history
2014–2017Patents assigned to MYERLEY THOMAS S (3)· patent assignee history
2014–2020Based in Tulsa, OK, US· patent location history
2017–2020Patents assigned to BAKER HUGHES A GE CO LLC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 9 | 1981–1994 |
| BAKER HUGHES INC | 7 | 2014–2017 |
| HAIR MICHAEL Lself | 6 | 1978–2017 |
| BAKER HUGHES A GE CO LLC | 3 | 2017–2020 |
| MYERLEY THOMAS S | 3 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oakville, CA | 10 | 1978–1994 |
| Tulsa, OK, US | 9 | 2014–2020 |