Inventor
Richard A. Hoffman
Inventor
Harrisburg, PA, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification12%
C23CCoating metallic material10%
C25FProcesses for the electrolytic removal of materials from objects7%
A44CPersonal adornments, e.g. jewellery6%
G04BMechanically-driven clocks or watches6%
B22CFoundry moulding4%
B22DCasting of metals4%
C30BSingle-crystal growth4%
G02BOptical elements, systems or apparatus4%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h104%
PatentTitleYear
10,577,715Foundry mixture and related methods for casting and cleaning cast metal parts202010,364,509Alkyl push flow for vertical flow rotating disk reactors20199,975,090Double pass reverse osmosis separator module20189,963,799Foundry mixture and related methods for casting and cleaning cast metal parts20189,593,434'Alkyl push flow for vertical flow rotating disk reactors'20179,480,137'Electrolytic cell for heating electrolyte by a glow plasma field in the electrolyte'20169,038,708'Foundry mixture and related methods for casting and cleaning cast metal parts'20158,603,248'System and method for varying wafer surface temperature via wafer-carrier temperature offset'20137,735,718'Layered products for fluxless brazing of substrates'20107,328,487'Bundling system with improved locking tie head'20086,959,853'Fluxless brazing method and method for manufacturing layered material systems for fluxless brazing'20056,264,823'Non-caustic cleaning of conductive and non-conductive bodies'20016,203,691'Electrolytic cleaning of conductive bodies'20015,747,135'Thin film pretreatment for memory disks and associated methods'19985,632,312'Tie-wrap tool with improved bracing block'19975,544,391'Tie head and fastening system'19964,737,252'Method of coating a metallic article of merchandise with a protective transparent film of abrasion-resistance material'19884,533,605'Article such as jewelry or a wristwatch component having composite multi-film protective coating'19854,517,217'Protective coating means for articles such as gold-plated jewelry and wristwatch components'19854,495,254'Protectively-coated gold-plated article of jewelry or wristwatch component'19854,214,818'Hot pressed SiC-high power laser mirror'19804,142,006'Method of making a high power laser mirror'19794,072,782'Composite erosion resistant optical window'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1988Patents assigned to WESTINGHOUSE ELECTRIC CORP (7)· patent assignee history
1979–2010Based in Export, PA, US· patent location history
1985–1988Based in Murrysville, PA, US· patent location history
1996–2008Patents assigned to DYMETROL COMPANY INC (3)· patent assignee history
1996–2008Based in Landenberg, PA, US· patent location history
2001Patents assigned to HOFFMAN IND INTERNATIONAL LTD (2)· patent assignee history
2001–2020Based in Harrisburg, PA, US· patent location history
2005–2010Patents assigned to DANA CANADA CORP (2)· patent assignee history
2013–2019Patents assigned to VEECO INSTR INC (3)· patent assignee history
2013–2019Based in Clinton, NJ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTINGHOUSE ELECTRIC CORP | 7 | 1978–1988 |
| DYMETROL COMPANY INC | 3 | 1996–2008 |
| VEECO INSTR INC | 3 | 2013–2019 |
| DANA CANADA CORP | 2 | 2005–2010 |
| HOFFMAN IND INTERNATIONAL LTD | 2 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Harrisburg, Pennsylvania, US | 6 | 2001–2020 |
| Export, Pennsylvania, US | 5 | 1979–2010 |
| Murrysville, Pennsylvania, US | 4 | 1985–1988 |
| Clinton, New Jersey, US | 3 | 2013–2019 |
| Landenberg, Pennsylvania, US | 3 | 1996–2008 |