
Derrick W. Ferris
Supervisory Patent Examiner (ID: 15335, Phone: (571)272-3123 , Office: P/2478 )
| Most Active Art Unit | 2663 |
| Art Unit(s) | 2663, 2411, 2616, 2463, 2400, OPT, 2478 |
| Total Applications | 417 |
| Issued Applications | 284 |
| Pending Applications | 43 |
| Abandoned Applications | 91 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 2626518
[patent_doc_number] => 04913537
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-04-03
[patent_title] => 'Vari-focal lens system with switchable auxiliary lens units'
[patent_app_type] => 1
[patent_app_number] => 7/267845
[patent_app_country] => US
[patent_app_date] => 1988-11-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 18
[patent_no_of_words] => 3952
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 100
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/913/04913537.pdf
[firstpage_image] =>[orig_patent_app_number] => 267845
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/267845 | Vari-focal lens system with switchable auxiliary lens units | Nov 6, 1988 | Issued |
Array
(
[id] => 2586372
[patent_doc_number] => 04964705
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-10-23
[patent_title] => 'Unit magnification optical system'
[patent_app_type] => 1
[patent_app_number] => 7/267965
[patent_app_country] => US
[patent_app_date] => 1988-11-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 12
[patent_no_of_words] => 3308
[patent_no_of_claims] => 26
[patent_no_of_ind_claims] => 6
[patent_words_short_claim] => 89
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/964/04964705.pdf
[firstpage_image] =>[orig_patent_app_number] => 267965
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/267965 | Unit magnification optical system | Nov 6, 1988 | Issued |
Array
(
[id] => 2613712
[patent_doc_number] => 04950069
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-08-21
[patent_title] => 'Eye movement detector with improved calibration and speed'
[patent_app_type] => 1
[patent_app_number] => 7/267266
[patent_app_country] => US
[patent_app_date] => 1988-11-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 14
[patent_figures_cnt] => 24
[patent_no_of_words] => 12654
[patent_no_of_claims] => 15
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 317
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/950/04950069.pdf
[firstpage_image] =>[orig_patent_app_number] => 267266
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/267266 | Eye movement detector with improved calibration and speed | Nov 3, 1988 | Issued |
Array
(
[id] => 2477541
[patent_doc_number] => 04859052
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1989-08-22
[patent_title] => 'Portable screen assembly for visual acuity testing'
[patent_app_type] => 1
[patent_app_number] => 7/268629
[patent_app_country] => US
[patent_app_date] => 1988-11-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 7
[patent_no_of_words] => 1966
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 172
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/859/04859052.pdf
[firstpage_image] =>[orig_patent_app_number] => 268629
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/268629 | Portable screen assembly for visual acuity testing | Nov 3, 1988 | Issued |
Array
(
[id] => 2656528
[patent_doc_number] => 04904077
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-02-27
[patent_title] => 'Eyeglass frame with locked screw joint'
[patent_app_type] => 1
[patent_app_number] => 7/262987
[patent_app_country] => US
[patent_app_date] => 1988-10-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 21
[patent_no_of_words] => 2269
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 127
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/904/04904077.pdf
[firstpage_image] =>[orig_patent_app_number] => 262987
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/262987 | Eyeglass frame with locked screw joint | Oct 25, 1988 | Issued |
| 07/260106 | COLOR-CORRECTED OPTICAL SYSTEMS WITH LIQUID LENS ELEMENTS | Oct 19, 1988 | Abandoned |
Array
(
[id] => 2612200
[patent_doc_number] => 04955713
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-09-11
[patent_title] => 'Spectacles for improving binocular vision'
[patent_app_type] => 1
[patent_app_number] => 7/260272
[patent_app_country] => US
[patent_app_date] => 1988-10-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 6
[patent_no_of_words] => 2185
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 112
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/955/04955713.pdf
[firstpage_image] =>[orig_patent_app_number] => 260272
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/260272 | Spectacles for improving binocular vision | Oct 19, 1988 | Issued |
Array
(
[id] => 2646740
[patent_doc_number] => 04971431
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-11-20
[patent_title] => 'Device for the temporary fixing of lenses on a spectacle frame'
[patent_app_type] => 1
[patent_app_number] => 7/258906
[patent_app_country] => US
[patent_app_date] => 1988-10-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 6
[patent_no_of_words] => 3190
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 136
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/971/04971431.pdf
[firstpage_image] =>[orig_patent_app_number] => 258906
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/258906 | Device for the temporary fixing of lenses on a spectacle frame | Oct 16, 1988 | Issued |
Array
(
[id] => 2578005
[patent_doc_number] => 04927260
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-05-22
[patent_title] => 'Apparatus and method for the precision evaluation of visual function in the fovea centralis (macula) area of the retina'
[patent_app_type] => 1
[patent_app_number] => 7/255875
[patent_app_country] => US
[patent_app_date] => 1988-10-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 4921
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 113
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/927/04927260.pdf
[firstpage_image] =>[orig_patent_app_number] => 255875
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/255875 | Apparatus and method for the precision evaluation of visual function in the fovea centralis (macula) area of the retina | Oct 10, 1988 | Issued |
Array
(
[id] => 2736411
[patent_doc_number] => 04986649
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-01-22
[patent_title] => 'Eyeglasses frame with improved frontal support'
[patent_app_type] => 1
[patent_app_number] => 7/255476
[patent_app_country] => US
[patent_app_date] => 1988-10-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 1281
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 137
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/986/04986649.pdf
[firstpage_image] =>[orig_patent_app_number] => 255476
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/255476 | Eyeglasses frame with improved frontal support | Oct 10, 1988 | Issued |
Array
(
[id] => 2626667
[patent_doc_number] => 04913545
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-04-03
[patent_title] => 'Adapter for lens retaining ring for use in connection with eye examination'
[patent_app_type] => 1
[patent_app_number] => 7/254286
[patent_app_country] => US
[patent_app_date] => 1988-10-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 6
[patent_no_of_words] => 1942
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 11
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/913/04913545.pdf
[firstpage_image] =>[orig_patent_app_number] => 254286
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/254286 | Adapter for lens retaining ring for use in connection with eye examination | Oct 5, 1988 | Issued |
Array
(
[id] => 2597570
[patent_doc_number] => 04902121
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-02-20
[patent_title] => 'Range detector for eye instrument having interrogating beam'
[patent_app_type] => 1
[patent_app_number] => 7/253005
[patent_app_country] => US
[patent_app_date] => 1988-10-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 2
[patent_no_of_words] => 1241
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 208
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/902/04902121.pdf
[firstpage_image] =>[orig_patent_app_number] => 253005
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/253005 | Range detector for eye instrument having interrogating beam | Oct 3, 1988 | Issued |
Array
(
[id] => 2586651
[patent_doc_number] => 04940323
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-07-10
[patent_title] => 'Light stimulator'
[patent_app_type] => 1
[patent_app_number] => 7/253900
[patent_app_country] => US
[patent_app_date] => 1988-10-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 9
[patent_no_of_words] => 3150
[patent_no_of_claims] => 25
[patent_no_of_ind_claims] => 6
[patent_words_short_claim] => 134
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/940/04940323.pdf
[firstpage_image] =>[orig_patent_app_number] => 253900
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/253900 | Light stimulator | Oct 3, 1988 | Issued |
Array
(
[id] => 2580544
[patent_doc_number] => 04917479
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-04-17
[patent_title] => 'Adjustable counterweighted temple pieces for eyeglasses'
[patent_app_type] => 1
[patent_app_number] => 7/252116
[patent_app_country] => US
[patent_app_date] => 1988-10-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 10
[patent_no_of_words] => 2422
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 222
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/917/04917479.pdf
[firstpage_image] =>[orig_patent_app_number] => 252116
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/252116 | Adjustable counterweighted temple pieces for eyeglasses | Oct 2, 1988 | Issued |
| 07/251396 | ZOOM LENS SYSTEM | Sep 29, 1988 | Abandoned |
Array
(
[id] => 2612067
[patent_doc_number] => 04955706
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-09-11
[patent_title] => 'Composite polymeric spectacle parts'
[patent_app_type] => 1
[patent_app_number] => 7/252265
[patent_app_country] => US
[patent_app_date] => 1988-09-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 3
[patent_no_of_words] => 2947
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 107
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/955/04955706.pdf
[firstpage_image] =>[orig_patent_app_number] => 252265
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/252265 | Composite polymeric spectacle parts | Sep 29, 1988 | Issued |
Array
(
[id] => 2504542
[patent_doc_number] => 04854693
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1989-08-08
[patent_title] => 'Ophthalmic disease detection apparatus'
[patent_app_type] => 1
[patent_app_number] => 7/253346
[patent_app_country] => US
[patent_app_date] => 1988-09-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 2113
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 280
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/854/04854693.pdf
[firstpage_image] =>[orig_patent_app_number] => 253346
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/253346 | Ophthalmic disease detection apparatus | Sep 28, 1988 | Issued |
Array
(
[id] => 2675922
[patent_doc_number] => 05048944
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-09-17
[patent_title] => 'Eyeglasses with removable lens assembly'
[patent_app_type] => 1
[patent_app_number] => 7/246987
[patent_app_country] => US
[patent_app_date] => 1988-09-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 12
[patent_no_of_words] => 4448
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 116
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/05/048/05048944.pdf
[firstpage_image] =>[orig_patent_app_number] => 246987
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/246987 | Eyeglasses with removable lens assembly | Sep 19, 1988 | Issued |
| 07/245417 | APPARATUS AND A METHOD FOR FINDING BLIND SPOTS IN THE EYE OF A VOLUNTEER PATIENT | Sep 15, 1988 | Abandoned |
Array
(
[id] => 2760335
[patent_doc_number] => 04984876
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-01-15
[patent_title] => 'Zoom lens system'
[patent_app_type] => 1
[patent_app_number] => 7/244796
[patent_app_country] => US
[patent_app_date] => 1988-09-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 43
[patent_figures_cnt] => 316
[patent_no_of_words] => 22137
[patent_no_of_claims] => 39
[patent_no_of_ind_claims] => 9
[patent_words_short_claim] => 154
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/984/04984876.pdf
[firstpage_image] =>[orig_patent_app_number] => 244796
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/244796 | Zoom lens system | Sep 14, 1988 | Issued |