Inventor
Donald R. Davidson
Inventor
Chatham, NJ, US
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D05Bprimary
D05BSewing19%
B01DSeparation9%
C02FTreatment of water, waste water, sewage, or sludge9%
D06FLaundering, drying, ironing, pressing or folding textile articles9%
A41HAppliances or methods for making clothes, e.g. for dress-making or for tailoring, not otherwise provided for6%
D05DIndexing scheme associated with subclasses d05b and d05c, relating to sewing, embroidering and tufting6%
F21VFunctional features or details of lighting devices or systems thereof6%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems6%
Y10TTechnical subjects covered by former us classification6%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body3%
PatentTitleYear
7,318,448'Swimming pool cleaning apparatus and parts therefor'20086,254,788'Method of sanitizing water in a bathing pool'20016,004,458'Filter/sanitizer'19995,993,753'Chlorinator/sanitizer and method of using same'19995,882,528'Method for extending useful life of filter aid in a filter with hydraulically deformable system'19995,871,641'Fluid filter with pleated septum'19995,788,258'Folding ball hitch with recessed safety chain attachment'19985,607,224'Plastic niche and grounding assembly therefor'19975,591,329'Fluid filter with pleated septum'19975,432,688'Plastic niche and grounding assembly therefor'19955,271,561'Rotary jet hydrotherapy device and method'1993D0313097'Steam iron sole plate for seam opening or similar article'1990D0312906'Steam iron sole plate for accommodating buttons and pleats or similar article'1990D0312907'Steam iron sole plate for accommodating zippers or similar article'1990D0312905'Steam iron sole plate for high nap fabrics or similar article'19904,955,152'Steam ironing press'19904,953,300'Steam ironing press'19904,922,637'Steam ironing press #1'19904,434,729'Continuous monogrammer'19844,386,573'Embroidery attachment for electronic sewing machine'19834,380,961'Variably controllable bobbin thread pull-off mechanism'19834,372,237'Two dimensional feed for monogram sewing machine'19834,316,562'Button attaching tool'19824,296,698'Button attaching hand tool with button storage compartment'19814,176,561'Low tolerance rotary to linear transmission'19794,167,912'Sewing machine stitch length override and feed balance for digital feed actuators'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1984Patents assigned to SINGER CO (8)· patent assignee history
1979–1984Based in Berkeley Heights, NJ, US· patent location history
1979Based in Hasbrouck Heights, NJ, US· patent location history
1990Patents assigned to SSMC INC (7)· patent assignee history
1990–2008Based in Chatham, NJ, US· patent location history
1993Patents assigned to HAYWARD IND INC (1)· patent assignee history
1995–2008Patents assigned to H TECH INC (9)· patent assignee history
1998Patents assigned to ATWOOD IND INC (1)· patent assignee history
1998Based in Rockford, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| H TECH INC | 9 | 1995–2008 |
| SINGER CO | 8 | 1979–1984 |
| SSMC INC | 7 | 1990 |
| ATWOOD IND INC | 1 | 1998 |
| HAYWARD IND INC | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chatham, New Jersey, US | 17 | 1990–2008 |
| Berkeley Heights, New Jersey, US | 7 | 1979–1984 |
| Rockford, Illinois, US | 1 | 1998 |
| Hasbrouck Heights, New Jersey, US | 1 | 1979 |