Inventor
Donald T. Freese
Inventor
Glenside, PA, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge31%
C23FNon-mechanical removal of metallic material from surface18%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
B01FMixing, e.g. dissolving, emulsifying or dispersing4%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials4%
D21HPulp compositions4%
PatentTitleYear
10,367,217Membrane electrode assembly manufacturing process20199,018,264'Aqueous delivery system for low surface energy structures'20158,851,294'Aqueous delivery system for low surface energy structures'20146,099,755'Method and composition for inhibiting scale and controlling corrosion in cooling water systems'20005,866,013'Method for inhibiting scale and controlling corrosion in cooling water systems'19995,866,032'Composition for controlling scale formation in aqueous systems'19995,616,278'Inhibition of scale and corrosion in aqueous systems'19975,575,920'Method of inhibiting scale and controlling corrosion in cooling water systems'19965,518,629'Methods for controlling scale formation in acqueous systems'19965,518,630'Method for controlling scale formation and deposition'19965,489,666'Control of scale formation in aqueous systems'19965,401,323'Method for removing clay deposits from cooling water systems'19955,401,311'Method for removing deposits from cooling water systems'19955,378,390'Composition for controlling scale formation in aqueous systems'19955,378,372'Control of scale formation in aqueous systems'19955,326,478'Methods for controlling scale formation in aqueous systems'19945,271,862'Inhibition of silica and silicate deposition in cooling water systems'19935,158,685'Inhibition of silica and silicate deposition in cooling water systems'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1996Patents assigned to BETZ LABORATORIES (10)· patent assignee history
1992–1997Based in Glenside, PA, US· patent location history
1996–2000Patents assigned to BETZDEARBORN INC (5)· patent assignee history
1999–2015Based in Chadds Ford, PA, US· patent location history
2014–2019Patents assigned to GORE & ASS (3)· patent assignee history
2014Patents assigned to FREESE DONALD (1)· patent assignee history
2019Based in Waikoloa, HI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BETZ LABORATORIES | 10 | 1992–1996 |
| BETZDEARBORN INC | 5 | 1996–2000 |
| GORE & ASS | 3 | 2014–2019 |
| FREESE DONALDself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Glenside, Pennsylvania, US | 12 | 1992–1997 |
| Chadds Ford, Pennsylvania, US | 5 | 1999–2015 |
| Waikoloa, HI, US | 1 | 2019 |