Inventor
David B. Park
Inventor
Middleboro, MA, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B65Gprimary
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors50%
F25DRefrigerators19%
B01DSeparation13%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing6%
B29CShaping or joining of plastics6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
6,261,500'Method for making a thermoplastic composite tubular member such as a golf shaft'20015,589,079'Crystal recovery method employing a rotary vacuum filtration drum with valved hopper cake treatment means'19965,470,473'Rotary vacuum filtration drum with valved hopper cake treatment means'19954,640,410'Conveying system of the type in which plastic carriers are mounted on plastic links of a conveyor chain'19874,613,037'Rod-type conveyor belt'19864,579,218'Conveyor drive mechanism'19864,576,277'Conveyor system with removable wear members'19864,540,083'Unlatch assembly for a conveyor system'19854,503,968'Relatch assembly for a conveyor system'19854,324,326'Discharge assembly for an oven'19824,232,779'Infeed assembly and a discharge assembly for a conveyor system'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1982Patents assigned to DESIGN & PROCESS ENGINEERING I (2)· patent assignee history
1980–1985Based in Wilmington, MA, US· patent location history
1985Patents assigned to SANTRADE LTD (2)· patent assignee history
1986–1987Patents assigned to PARK DAVID B (3)· patent assignee history
1986Based in Spring Grove, PA, US· patent location history
1987Patents assigned to PALMAER K V (1)· patent assignee history
1987–2001Based in Middleboro, MA, US· patent location history
1995–1996Patents assigned to BAKER HUGHES INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PARK DAVID Bself | 3 | 1986–1987 |
| BAKER HUGHES INC | 2 | 1995–1996 |
| DESIGN & PROCESS ENGINEERING I | 2 | 1980–1982 |
| SANTRADE LTD | 2 | 1985 |
| PALMAER K V | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Middleboro, Massachusetts, US | 4 | 1987–2001 |
| Wilmington, Massachusetts, US | 4 | 1980–1985 |
| Spring Grove, Pennsylvania, US | 3 | 1986 |